Michael Tooley

In this paper, I focus upon two aspects of Adolf Grünbaum's discussion of space and time. First, I consider Grünbaum's rejection of intrinsic metrics in favor of extrinsic metrics, both in the case of space, and also in the case of time. Here I argue for the following three claims: (1) The idea of an extrinsic metric is open to very strong objections, both in the case of space, and in the case of time; (2) By contrast, there is no serious objection to the idea of an intrinsic metric, either in the case of space, or in the case of time; (3) There are good reasons for postulating an intrinsic metric, both in the case of space, and in the case of time. Secondly, I also consider Grünbaum's account of the nature of time, and here I argue for the following theses: (1) The argument that Grünbaum offers against accounts of the nature of time that postulate mind-independent tensed facts does not show that such accounts are unsound; (2) Grünbaum's claim that all tensed facts are mind-dependent is open to a serious objection; (3) Grünbaum's proposal that conceptualized awareness is an essential constituent of mind-dependent tensed facts is also very problematic.

Causation Accounts of the concept of causation can be divided up into four general types: direct non-reductionist, Humean reductionist, non-Humean reductionist, and indirect, or theoretical-term, non-reductionist accounts. This fourfold division, in turn, rests upon the following three distinctions: first, that between reductionism and non-reductionism; secondly, that between Humean and non-Humean states of affairs; and, thirdly, that between states that are directly observable and those that are not. Let us, then, consider each of these distinctions in turn. Non-Reductionism versus Reductionism The non-reductionism-versus-reductionism distinction in this area arises in connection with both causal laws, and causal relations between states of affairs, and it gives rise to a number of related theses. In the case of causal relations between states of affairs, a thesis that is essential to reductionism is this: Basic Reductionism with respect to Causal Relations Any two worlds that agree both with respect to all of the non-causal properties of, and relations between, particulars, and with respect to all causal laws, must also agree with respect to all of the causal relations between states of affairs. Causal relations are, then, logically supervenient upon the totality of instances of non-causal properties and relations, together with causal laws. But while this thesis is an essential part of a reductionist view of causation, it is not sufficient, since this thesis can be combined with a view of causal laws according to which they obtain in virtue of atomic, and therefore irreducible, facts. What is needed, then, is a reductionist thesis concerning causal laws, and here there are two important possibilities: Strong Reductionism with respect to Causal Laws Any two worlds that agree with respect to all of the non-causal properties of, and relations between, particulars, must also agree with respect to causal laws. Causal laws are, then, logically supervenient upon the totality of instances of non-causal properties and relations. Moderate Reductionism with respect to Causal Laws Any two worlds that agree both with respect to all of the non-causal properties of, and relations between, particulars, and with respect to all laws of nature, must also agree with respect to all causal laws. Causal laws are, then, logically supervenient upon the totality of instances of non-causal properties and relations, together with laws of nature. What lies behind this strong-reductionism-versus-moderate-reductionism distinction? The answer is that while most philosophers who are reductionists with regard to causation tend to identify laws of nature with certain cosmic regularities, it is possible to be a reductionist with regard to causation while holding that laws are more than certain cosmic regularities: one might hold, for example, that laws of nature are second-order relations between universals (Dretske, 1977; Tooley, 1977; Armstrong, 1983). Such a person would reject Strong Reductionism with regard to causal laws, while accepting Moderate Reductionism. Each of these two reductionist theses concerning causal laws then entails, in conjunction with the Basic Reductionist thesis concerning causal relations, a corresponding thesis concerning causal relations between states of affairs: Strong Reductionism with respect to Causal Relations Any two worlds that agree with respect to all of the non-causal properties of, and relations between, particulars, must also agree with respect to all of the causal relations between states of affairs. Causal relations are, in short, logically supervenient upon the totality of instances of non-causal properties and relations. Moderate Reductionism with respect to Causal Relations Any two worlds that agree both with respect to all of the non-causal properties of, and relations between, particulars, and with respect to all laws of nature, must also agree with respect to all of the causal relations between states of affairs. Causal relations are, then, logically supervenient upon the totality of instances of non-causal properties and relations, together with laws of nature. To be a reductionist with regard to causation, then, is to accept the Basic Reductionist thesis with respect to causal relations, and either the Strong or the Moderate Reductionist thesis with respect to causal laws. This then commits one either to the Strong Reductionist thesis or the Moderate Reductionist thesis with respect to causal relations. A non-reductionist with regard to causation, accordingly, is one who rejects either the Basic Reductionist thesis concerning causal relations, or else both the Strong and the Moderate Reductionist theses with regard to causal laws, or all of these.

In this essay, I set out my responses to the following five questions that had been posed: 1. Why were you initially drawn to metaphysics (and what keeps you interested)? 2. What do you consider to be your most important contributions to metaphysics? 3. What do you consider to be the proper method for metaphysics? 4. What do you think is the proper role of metaphysics in relation to other areas of philosophy and other academic disciplines, including the natural sciences? 5. What do you consider to be the most neglected topics in contemporary metaphysics, and what direction would you like metaphysics to take in the future?

1.1 The Concept of Evil The problem of evil, in the sense relevant here, concerns the question of the reasonableness of believing in the existence of a deity with certain characteristics. In most discussions, the deity is God, understood as an omnipotent, omniscient, and morally perfect person. But the problem of evil also arises, as Hume saw very clearly, for deities that are less than all-powerful, less than all-knowing, and less than morally perfect. What is the relevant concept of evil, in this context? Here it is useful to distinguish between axiological concepts and deontological ones. First, there are judgments about whether certain states of affairs make the world better or worse, whether those states are good or bad, desirable or undesirable. Such normative concepts – of good and bad, or desirable and undesirable, states of affairs – are axiological concepts. Secondly, there are judgments about the rightness and wrongness of actions, about what one morally ought or ought not do, of what one’s duty is, of whether a certain action violates someone rights, and these concepts – of the rightness and wrongness of actions, of duties, of the rights of individuals, of what one should or should not do – are deontological concepts. Given this distinction, should the problem of evil be understood axiologically or deontologically? Often, and I think most commonly in this context, evils are equated with states of affairs that, all things considered, are bad or undesirable: they are states of affairs that make the world a worse place. But one can also interpret the problem of evil in a deontological fashion, equating evils with states of affairs that a person should have prevented, if he could have done so. Elsewhere (2008, 105-6), I have argued that the deontological interpretation is preferable. But for present purposes, either interpretation will be fine. 1.2 Evil and the Reasonableness of Belief in the Existence of God That many things in the world – tsunamis, earthquakes, the suffering of non-human animals and innocent children, human actions such as the carrying out of the Holocaust – certainly appear to be evil is not a controversial matter. But whether such things are really evils, all things considered, is disputed. Assume, however, that the world does continue genuine evils, and not merely apparent ones. How, then does the existence of such evils bear upon the reasonableness of belief in the existence of God? First, the existence of evils can be used to show that certain arguments for the existence of God cannot establish that conclusion, or even render it probable. For some arguments, of course, one need not appeal to evil to make that point. If someone argues for the existence of a first cause, or an unmoved mover, or a necessary being having its necessity of itself, and then claims that this is what everyone understands by the term “God”, one can point out that no reason has been offered for thinking that the entity in question is even a person, let alone omnipotent, omniscient, and perfectly good. By contrast, with the type of argument that Hume was concerned with when he discussed the problem of evil – namely, arguments from the existence of order in the world to the existence of a designer, or intelligent cause of that order – one does have a type of argument that, if sound, shows that there is a person who, even if not omnipotent and omniscient, is at least extremely powerful and very knowledgeable. But such arguments do not support for conclusions about the moral character of such a person, and so it is at this point that the existence of evils becomes crucial. For in providing a reason for holding that the one is not justified in attributing even moral goodness to such a being, let alone moral perfection, it supports the conclusion that that argument in question cannot be a successful argument for the existence of God. The existence of evils, then, can serve to block arguments for the existence of God. But a second, and very familiar possibility, is that the existence of evils can also provide the basis of arguments against the existence of God. A very important distinction here is between deductive, or logical incompatibility, versions of the argument from evil, and inductive, or evidential, or probabilistic versions of the argument. According to the former, there are facts about the existence of evils in the world that are logically incompatible with the existence of God. Thus, some have held that the mere existence of any evil whatsoever is incompatible with the existence of God; others, that that certain types of evil – such as natural evils – are incompatible with the existence of God; and others, that it is the amount of evil in the world, or the fact that some people suffer horrendous evils, that logically precludes the existence of God. Inductive (or evidential, or probabilistic) versions of the argument from evil, by contrast, do not claim that there are facts about the evils in the world that are logically incompatible with the existence of God. The claim is rather that there are facts about the evils found in the world that render the existence of God at the very least unlikely, and perhaps extremely so. 1.3 Hume’s Use of the Existence of Evils The preceding discussion suggests two very different ways in which Hume might be employing the existence of evils. First, he might be appealing to the existence of evils simply to undercut certain arguments for the existence of God. In particular, he might be appealing to evils to show that, whatever the merits of the argument from order to design may be, it can nether establish, nor render probable, the existence of a morally good deity. Secondly, Hume might be advancing a version of the argument from evil, and that in turn could take the form either of an argument that claims that facts about evil are logically incompatible with the existence of God, or of an argument that claims, more modestly, that the apparent evils found in the world render the existence of God unlikely.

In this talk, I shall begin by considering alternative definitions of "naturalism", and by asking how the term is best understood in the present context. In answering this question, I shall distinguish between anti-naturalism on the one hand, and supernaturalism on the other. Next, I shall discuss the relation between science and supernaturalism, and I shall argue, first, that a commitment to scientific method does not in itself presuppose a rejection of supernaturalism, and secondly, that scientific investigation and theorizing could in principle show either that supernaturalism is true, or that it is false. I shall then go on to survey a number of pro-supernaturalist arguments and discussions, both traditional and more recent. Given the number of such arguments and discussions, my critical commentary will necessarily be rather brief, though I shall comment in more detail upon some of the work of Michael Behe and William Dembski. The basic conclusion for which I shall argue is that there is no good reason for thinking that supernaturalism is true.

The questions of whether members of some non-human species of animals are persons, and--if so--which ones, are among the most difficult questions in ethics. The difficulty arises from two sources. First, there is the problem of how the concept of a person should be analyzed, a problem that is connected with the fundamental and challenging ethical question of the properties that give something a right to continued existence. Second, there is the problem of determining what psychological capacities, and what type of mental life, adult members of a given non-human species have. My focus in this essay is upon the first of these issues, and my discussion is organized as follows. In section 1, I shall discuss the concept of a person and the concept of a right to continued existence. Then, in section 2, I shall examine some important arguments aimed at establishing that non-human animals do not have a right to continued existence–in some cases on the grounds that they have no moral rights at all. Finally, in section 3, I shall turn to an examination of arguments in support of the view that non-human animals do have rights, including a right to continued existence.

My topic is the skeptical challenges that are posed by Hume and Berkeley. Can one show, contrary to what Hume claimed, that one is justified in projecting regularities that have held in the past into the future? Can one show that induction is justified? Or can one show, contrary to what Berkeley claimed, not only that the hypothesis that there is an external, physical world expresses a coherent proposition, but also one that is extremely likely to be true? The basic theses concerning skepticism that I believe can be proved are as follows: (1) Skepticism about induction can be refuted. (2) Skepticism about the existence of an external, physical world can be refuted. Will I actually prove that these things are so? Well, as you might have guessed, not quite! Still, my goals are not completely devoid of ambition. First of all, I shall be alluding to mathematical proofs that make it very plausible that whether induction can be justified depends upon a certain metaphysical issue. You may now be thinking, “Wow, that sounds like bad news! A philosophical result in epistemology that depends upon metaphysics. I was hoping that this would be an upbeat talk.” But the answer is that the dependence upon an issue in metaphysics is not as troubling as one might initially suppose. The reason is that the metaphysical issue in question is whether something is logically possible, and so whether it is so or not is a necessary truth. In any case, I shall begin by explaining what the metaphysical issue in question is.

I argue that the most familiar forms of presentism can be seen, upon reflection, to involve two very different claims. Most arguments against such forms of presentism are directed against one of those claims, and I think that the arguments in question, properly formulated, are sound. In this paper, however, I want to set out an argument directed against the second claim, and to consider the prospects for that type of argument. My discussion is organized as follows. In section 1, I describe four different forms that presentism can take, which I refer to as extreme presentism, austere, reductive presentism, tensed-facts presentism, and ersatzer presentism. Of these four forms of presentism, only the last two are popular today. In section 2, I briefly describe the more important types of objections that are standardly advanced against presentism. Then, in section 3, I argue that the dispute between presentists other than extreme presentists, on the one hand, and non-presentists, on the other, is very different from the dispute between, say, theists and atheists, and that this difference has important implications with regard to the types of objection that can be directed against presentism. Finally, in section 4, I set out the alternative line of argument against presentism that arises out of that difference.

Questions concerning the moral and appropriate legal status of abortion are among the most important issues in applied ethics, and answering those questions involves addressing some intellectually very difficult issues. First, many alternatives exist concerning what nonpotential properties suffice to give something moral status. These include (a) having the capacity for thought, (b) having the capacity for rational thought, (c) possessing self-consciousness, (d) being a continuing subject of mental states, (e) being a subject of nonmomentary interests, (f) being an agent, (g) being a moral agent, (h) having consciousness, (i) having both consciousness and desires, and (j) being able to use a language. Deciding which of these, or other alternatives, correctly identifies nonpotential properties sufficient to give one moral status is not at all an easy matter. Second, another crucial and very challenging issue is this. Suppose that property P gives an entity moral status. If something will, in the normal course of development, acquire property P, does that entity then have moral status by virtue of that potentiality? This question, which appears to be crucial for determining the moral status of abortion, is presently the object of serious philosophical disagreement. Finally, given certain answers to the preceding two questions, the moral status of abortion may depend upon answers to questions in areas outside of ethics. Suppose, for example, that something begins to have moral status only when it acquires a capacity for thought. Then the question is when developing members of our species first acquire that capacity. Answering that question, however, depends upon answering philosophical and scientific questions about the nature of human minds, because it may be crucial whether, as some philosophers believe, substance dualism is right, and the human mind is an immaterial entity, or whether, on the contrary, either property dualism or physicalism is correct. If substance dualism is right, then determining when a human first acquires the capacity for thought may depend upon philosophical or religious arguments, whereas if either property dualism or physicalism is correct, the answer will depend instead upon the outcome of demanding scientific investigations in neurophysiology and psychology.

1. Overview 1.1 Main Divisions When, if ever, is it morally permissible to end the life of a human embryo or fetus, and why? As regards the first of these questions, there are extreme anti-abortion views, according to which abortion is prima facie seriously wrong from conception onwards – or at least shortly thereafter; there are extreme permissibility views, according to which abortion is always permissible in itself; and there are moderate views, according to which abortion is sometimes permissible, and sometimes not. Moderate views appeal to a variety of considerations in support of the view that abortion is sometimes justified, but these fall into four main categories. First, there are cases where the developing human is seriously defective in some way – perhaps such that it will not have a life that is worth living. Secondly, there are cases where continuation of pregnancy would involve serious risks to the life or health of the woman. Thirdly, there are moderate positions according to which the developing human initially does not have serious moral status, or a right to life, but acquires such status at some point before birth. Finally, it is often held that abortion is justified in the case of rape. With the exception of the last consideration, moderate views assume that the moral status of the developing human is crucial with respect to the permissibility of abortion. Moreover, this is a natural assumption that was shared by all sides until the publication in 1971 of Judith Jarvis Thomson’s article “A Defense of Abortion,” in which she argued that abortion is permissible even if one assumes, for the sake of argument, that human embryos and fetuses have a right to life. Thus we have one of the great divides in the philosophical discussion of abortion: Is the moral status of the developing human generally decisive with regard to the moral permissibility of abortion or not? 1.2 The Moral Status of the Developing Human: Thomson and Boonin Thomson’s article evoked many critical responses, along with some defenses, which I have described elsewhere (2013; “Thomson’s Attempt to Defend Abortion in General”). Crucial, however, is David Boonin’s defense (2003), which contains responses to all of the important objections directed against the attempt to show that one can defend abortion while granting that human embryos and fetuses have a right to life fully on a par with that of normal adult human beings. Boonin’s impressive efforts notwithstanding, I do not think that this way of defending an extreme permissibility view is successful. The crucial issue is whether it is morally permissible intentionally to bring into existence an entity with a right to life in a situation where one knows that it will not survive without one’s assistance, and then to refrain from providing that assistance. An especially forceful way of arguing that this is not permissible is found in an article by Richard Langer (1993, 351-2), who argues that if this were permissible, it would follow not only that abortion was justified, but also that it is permissible to allow one’s children to die, some years after birth, simply because one no longer wishes to care for them. 1.3 Moderate Views Moderate positions on abortion raise a number of issues that, for reasons of space, I cannot address here. Some of these depend on the issue of the moral status of the developing human, and defending a moderate view requires showing that both extreme anti-abortion and extreme moral permissibility views concerning the moral status of humans before birth are incorrect. I have argued elsewhere (1983, 285-302, and 2009, 59-63) that the prospects of doing this are not promising. As regards permissibility in the case of rape, everything depends upon whether, as Thomson contends (1971), there is no obligation to be a good Samaritan, rather than merely a minimally decent one, and so no obligation for a woman to remain pregnant to save the life of a being that she was not responsible for bringing into existence. Finally, on the one hand, in cases where the woman will die if an abortion is not performed, virtually all moral philosophers, with the exception of those who embrace the moral view advanced by the Catholic Church in encyclicals by Pope Pius XI (1930) and Pope Paul VI (1968), agree that abortion is morally permissible, while, on the other hand, if the situation is one where there is only some risk that the woman will die if an abortion is not performed, or where the threat is not to the woman’s life, but only to her health, then the situation does seem clear-cut if one assumes that the embryo or fetus has a right to life. 1.4 Extreme Anti-Abortion Views Very different arguments are offered for the view that abortion is in itself never permissible. First of all, in popular discussions, appeal is frequently made to the mere fact of membership in the biologically defined species Homo sapiens, but among those who are philosophically knowledgeable, this line of argument is almost invariably rejected, for reasons that I have set out elsewhere (Tooley, 2009, 21-35). Secondly, appeal is also made to the idea that humans have immaterial minds, or souls – for example, by Stephen Schwartz (1990), J. P. Moreland and Scott B. Rae (2000), Norman Ford (2002), and Francis J. Beckwith, (2005). The postulation of immaterial minds or souls is, however, open to strong objections, since there is excellent evidence that human psychological powers have their categorical bases in neural structures, rather than in an immaterial substance (Tooley, 2009, 15-19). In addition, the postulation of an immaterial soul, conceived of along Thomistic lines, is on a collision course with biology, since such an immaterial soul is held to govern a human’s life processes and biological development. Thirdly, there is the ‘substantial identity’ argument, advanced for example by Patrick Lee (2004), and which claims that an entity possesses a right to life by virtue of the type of substance it is. This view is exposed to a number of strong objections, however, among them the fact that it leads to the unacceptable consequence that a human that has suffered upper brain death still has a right to life (Tooley, 2009, 51-9). The upshot is that most philosophers do not find any of the preceding three lines of argument for an extreme anti-abortion position promising. The focus, accordingly, has been elsewhere – namely, on arguments claiming that human embryos and fetuses have serious moral status, or a right to life, because they have the potentiality for developing those psychological capacities – for thought, self-consciousness, rationality, and so on – that seem clearly relevant to a being’s moral status. In what follows, then, I shall confine my discussion to what seems to me the most crucial issue bearing upon the moral status of abortion, namely, that between, on the one hand, a potentiality account of moral status, and, on the other, the type of approach most commonly appealed to in support of an extreme permissibility position on abortion, namely, a personhood account of the right to life. One of the earliest defenders of the view that potentialities give something a right to life was Jim Stone in his article, “Why Potentiality Matters,” where Stone argues for the conclusion, “we have a prima facie duty not to deprive them of the conscious goods which it is their nature to realize” (1987, 821). Stone’s discussion, however, attracted much less attention than an article published two years later by Don Marquis, entitled “Why Abortion is Immoral.” The latter is one of the most interesting articles on abortion, as well as one of the most discussed––and deservedly so. In what follows, then, I shall focus upon it. My discussion is organized as follows. In section 2, I summarize Marquis’s account of the wrongness of killing. Then, in section 3, I set out an alternative account, one in which the concept of a neo-Lockean person is central. Sections 4, 5, and 6 are then devoted to criticisms of Marquis’s approach, all of which also support the alternative, rights-based, neo-Lockean personhood account.

In this essay, I set out my responses. to the following five questions that had been posed: 1. What initially drew you to theorizing about science and religion? 2. Do you think science and religion are compatible when it comes to understanding cosmology (the origin of the universe), biology (the origin of life and of the human species), ethics, and/or the human mind (minds, brains, souls, and free will) 3. Some theorists maintain that science and religion occupy non-overlapping magisteria—i.e., that science and religion each have a legitimate magisterium, or domain of teaching authority, and these two domains do not overlap. Do you agree? 4. What do you consider to be your own most important contribution(s) to theorizing about science and religion? 5. What are the most important open questions, problems, or challenges confronting the relationship between science and religion, and what are the prospects for progress? My responses to four of the questions were quite brief, with about three-quarters of what I said devoted to the second question, where I talked about cosmology, biology, psychology and the human mind, and ethics, and where I argued that in all of those areas there are very serious incompatibilities between science and/or philosophy on the one hand and Christianity on the other.

The structure of this paper is as follows. First, I start off by briefly explaining the concepts of pro-theism and anti-theism, and by distinguishing both between personal and impersonal versions of those views, and also between a more modest and a less modest claim connected with the impersonal version of pro-theism. I then introduce a distinction that is itself quite trivial, namely, that between pro-theism (and anti-theism), on the one hand, and pro-monotheism (and anti-monotheism), on the other, where the latter are defined in terms of the deity of some particular religion. The triviality notwithstanding, I shall argue at various points in the subsequent discussion that even the best discussions of the pro-theism versus anti-theism issue are vitiated to some extent by a failure to keep that distinction clearly in mind. Next, I consider how the pro-theism versus anti-theism question is related to the theism versus atheism question. These questions are often thought to be quite independent of each other, but I shall argue that that is not so. In particular, I shall argue that these two issues are neither logically nor evidentially independent of one another. The rest of the essay is then devoted to discussing the strength of the case for pro-theism, and there my basic claims are as follows. First, the case for the impersonal pro-theistic thesis––the thesis that, all things considered, the existence of God is better than the non-existence of God––is very strong relative to facts about which there is no dispute. Second, and contrary to the views of many philosophers, there is no respect in which the world is better if God does not exist than if God exists. Third, the case for the personal pro-theistic view that it is better for every person if God exists than it is if God does not exist is also very strong. Fourth, however, it is not clear that these pro-theistic conclusions remain justified if one thinks that one can take one’s evidence as including not just facts about which there is no dispute, but also the proposition that God exists, and I shall argue that if one does assume that theism is true, the support that can otherwise be offered for some pro-theistic claims is seriously weakened, perhaps even to the point where those claims can no longer be sustained. My general conclusion, accordingly, might be put as follows: While there is no significant anti-theistic thesis that can be sustained if one is an atheist, some pro-theistic theses may become problematic if one is a theist.

The thought that evil in the world poses a problem for belief in the existence of God is an ancient and very natural idea - going back at least to Job. But can that basic idea be converted into a sound argument for the non-existence of God? Arguments from evil against the existence of a deity come in two very different forms. On the one hand, one has what are known as incompatibility versions of the argument from evil. These are typically directed against God conceived of as in classical monotheism––that is, as an omnipotent, omniscient, and morally perfect person––and such arguments attempt to show that the existence of such a deity is logically incompatible with certain true propositions about the existence of evil states of affairs. Then, on the other hand, one has what are known as evidential or inductive formulations of the argument from evil. These arguments have the more modest goal of showing that facts about evil states of affairs in the world make it unlikely that deities with certain properties exist. Arguments of the latter sort will be the focus of the present chapter. As we shall see, evidential arguments from evil can be formulated in several ways, a full exposition of which would lead us into some quite technical waters. My goal, however, will be simply to make clear the basic ideas. Having done that, I shall describe three different responses to such arguments. One involves the idea of a theodicy, while a second appeals instead to countervailing evidence in support of the existence of God, and a third employs the idea of morally significant states of affairs that lie outside our ken. We shall see, I think, that all three responses are problematic.

“Masturbation and the Problem of Irrational and Immoral Sexual Activity” by Michael Tooley Tooley argues that aside from sex that aims at reproduction, most human sexual activity is both irrational and immoral, since it is dangerous, and equal or greater pleasure can be achieved by sex that is, truly, completely safe. Tooley then asks what must be done to arrive at a rational approach to human sexuality, and here he argues that it must be shown, first, that so-called ‘safe sex’ is anything but. Second, the ‘no safe sex’ army needs to be challenged to say what is unsafe about masturbation, either mutual or do-it-yourself. Finally, irrational views of sexuality are frequently derived from the teachings of the so-called ‘great religions’, especially Judaism and Christianity, and the irrationality of those approaches to sex needs to be clearly demonstrated.

This essay deals with the question of the morality of abortion and infanticide. The fundamental ethical objection traditionally advanced against these practices rests on the contention that human fetuses and infants have a right to life, and it is this claim that is the primary focus of attention here. Consequently, the basic question to be discussed is what properties a thing must possess in order to have a serious right to life. The approach involves defending, then, a basic principle specifying a condition living things must satisfy to have a serious right to life, and the answer given makes it unlikely that this condition is satisfied by human fetuses and infants, though this tentative conclusion could be altered by future scientific studies of the development of the human brain. As things stand at the moment, however, it seems unlikely that developing humans acquire the physical basis of the psychological capacities on which the right to continued existence rests, and therefore unless there are other substantial objections to abortion and infanticide that undercut the above line of thought, the conclusion is that such practices are not intrinsically wrong.

In his article, ‘What's Wrong with Tooley's Argument from Evil?’, Calum Miller's goal was to show that the evidential argument from evil that I have advanced is unsound, and in support of that claim, Miller set out three main objections. First, he argued that I had failed to recognize that the actual occurrence of an event can by itself, at least in principle, constitute good evidence that it was not morally wrong for God to allow events of the kind in question. Miller's second objection was then that, in attempting to show that it is unlikely that God exists, I had failed to consider either positive arguments in support of the existence of God or possible theodicies, and thus that I was unjustified in drawing any conclusions concerning the probability that theism is true in the light of the total evidence available. Miller's third and final objection was that one of the approaches to logical probability that I employed – namely, that based upon a structure-description equiprobability principle, rather than a state-description equiprobability principle – was unsound since it has clearly unacceptable implications. In response, I argue that all three of Miller's objections are unsound. The third objection, however, is nevertheless important since it shows that my type of argument from evil cannot be based merely on the evils found in the world. One must also consider good states of affairs, and their relations to bad ones. I show, however, that that deficiency can be addressed in a completely satisfactory manner.

Michael Tooley presents a major new philosophical theory of the nature of time, offering a powerful alternative to the traditional "tensed" and recent "tenseless" accounts of time. He argues for a dynamic conception of the universe, in which past, present, and future are not merely subjective features of experience. He claims that the past and the present are real, while the future is not. Tooley's approach accounts for time in terms of causation. He therefore claims that the key to understanding the dynamic nature of the universe is to understand the nature of causation. Time, Tense, and Causation is a landmark treatment of one of the oldest and most perplexing intellectual problems, and will be fascinating reading for anyone interested in the character of time

In his recent article, ``Self-Consciousness'’, George Bealer has set outa novel and interesting argument against functionalism in the philosophyof mind. I shall attempt to show, however, that Bealer's argument cannotbe sustained.In arguing for this conclusion, I shall be defending three main theses.The first is connected with the problem of defining theoreticalpredicates that occur in theories where the following two features arepresent: first, the theoretical predicate in question occurswithin both extensional and non-extensional contexts; secondly, thetheory in question asserts that the relevant theoretical states enterinto causal relations. What I shall argue is that a Ramsey-styleapproach to the definition of such theoretical terms requires twodistinct quantifiers: one which ranges over concepts, and theother which ranges over properties in the world.My second thesis is a corollary: since the theories on whichBealer is focusing have both of the features just mentioned, and sincethe method that he employs to define theoretical terms in his argumentagainst functionalism does not involve both quantifiers that range overproperties and quantifiers that range over concepts, that method isunsound.My final thesis is that when a sound method is used, Bealer's argumentagainst functionalism no longer goes through.The structure of my discussion is as follows. I begin by setting out twoarguments – the one, a condensed version of Bealer's argument, andthe other, an argument that parallels Bealer's argument very closely.The parallel argument leads to a conclusion, however, that, rather thanbeing merely somewhat surprising, seems very implausible indeed. Forwhat the second argument establishes, if sound, is that there can betheoretical terms that apply to objects by virtue of their first-orderphysical properties, but whose meaning cannot be defined via aRamsey-style approach.Having set out the two parallel arguments, I then go on to focus uponthe second, to determine what is wrong with it. My diagnosis will bethat the problem with the argument arises from the fact that it involvesdefining a theoretical term that occurs both inside and outside ofopaque contexts, for the method employed fails to take into account thefact that the types of entities that are involved in the relevanttruthmakers are different when a sentence occurs within an extensionalcontext from those involved when a sentence occurs within anon-extensional context.I then go on to discuss how one should define a theoretical term thatoccurs within such theories, and I argue that in such a case one needstwo quantifiers, ranging over different types of entities – on theone hand, over properties and relations, and the other, over concepts. Ithen show that, when such an approach is followed, the argument inquestion collapses.I then turn to Bealer's argument against functionalism, and I show,first, that precisely the same method of defining theoretical terms canbe applied there, and, secondly, that, when this is done, it turns outthat that argument is also unsound.Next, I consider two responses that Bealer might make to my argument,and I argue that those responses would not succeed.Finally, I conclude by asking exactly where the problem lies in the caseof Bealer's argument. My answer will be that it is not simply the factthat one is dealing with a theoretical term that occurs in bothextensional and non-extensional contexts. It is rather the combinationof that feature together with the fact that the theory in questionasserts that the relevant type of theoretical state enters into causalrelations. For the first of these features means that the Ramseysentence for the theory must involve quantification over concepts, whilethe presence of the second feature means that the Ramsey sentence mustinvolve quantification over properties in the world, and so no attemptto offer a Ramsey-style account of the meaning of the relevanttheoretical term can succeed unless one employs both quantification overconcepts and quantification over properties. Bealer, however, in hisargument against functionalism, uses a method of defining theoreticalterms that does not involve both types of quantification, and it isprecisely because of this that his argument does not in the end succeed.

The newest addition to the Point/Counterpoint Series, Abortion: Three Perspectives features a debate between four noted philosophers - Michael Tooley, Celia Wolf-Devine, Philip E. Devine, and Alison M. Jaggar - presenting different perspectives on one of the most socially and politically argued issues of the past 30 years. The three main arguments include the "liberal" pro-choice approach, the "communitarian" pro-life approach, and the "gender justice" approach. Divided into two parts, the text features the authors' ideas, developed in depth, and their responses to one another within each framework. As philosophers, the authors have special skills in critical analysis and thinking systematically about values. The text is appropriate for advanced courses in ethics, bioethics, sex and gender issues, and contemporary moral issues.

Is belief in God epistemically justified? That's the question at the heart of this volume in the Great Debates in Philosophy series, with Alvin Plantinga and Michael Tooley each addressing this fundamental question with distinctive arguments from opposing perspectives. The first half of the book contains each philosopher's explanation of his particular view; the second half allows them to directly respond to each other's arguments, in a lively and engaging conversation Offers the reader a one of a kind, interactive discussion Forms part of the acclaimed Great Debates in Philosophy series

This chapter is concerned with evidentialism, and with the bearing of evidentialism on the question of whether theistic belief is epistemically justified. The first task is to determine how evidentialism is best formulated, and answering that question requires considering both the concept of evidence, and the idea of epistemically basic, or non‐inferentially justified beliefs. Given a promising account of evidentialism, I then consider two important objections, one of which claims that beliefs always rest upon presuppositions that cannot themselves be justified, and the other of which claims that evidentialism entails skepticism, and must therefore be rejected. After answering those objections, I conclude by briefly considering the implications of evidentialism for religious belief in general, and for theism in particular.