Peter Millican

LOCKE famously defines knowledge as “the perception of the connexion and agreement, or disagreement and repugnancy of any of our Ideas” (Essay IV i 2), but his subsequent discussion significantly extends this somewhat vague and unclear definition. He starts by suggesting that knowledge always concerns one of four types of agreement or disagreement, namely “Identity, or Diversity”, “Relation”, “Co-existence, or necessary connexion”, and “real Existence”--his examples of the first two of these (perceiving the self-identity and distinctness of ideas, and the relations between ideas) fit relatively comfortably with his definition, but knowledge of “co-existence” (Locke instances the fixedness of gold and the magnetisability of iron) and “real existence” (for example of physical objects, or of God) both seem to involve the “agreement” of ideas with external things rather than merely amongst themselves.

Hume's essay on the credibility of miracle reports has always been controversial, with much debate over how it should be interpreted, let alone assessed. My aim here is to summarise what I take to be the most plausible views on these issues, both interpretative and philosophical, with references to facilitate deeper investigation if desired. The paper is divided into small sections, each headed by a question that provides a focus. Broadly speaking, §§1–3 and §20 are on Hume's general philosophical framework within which the essay is situated, §§4–11 and §19 are on Part 1, §12–18 are on Part 2, and the final three sections §§18–20 sum up my assessment of his arguments.

I advance what might be thought a paradoxical thesis: that the central topic of Hume’s long discussions “Of the Idea of Necessary Connexion” is not, in fact, the idea of necessary connexion. However it is not as paradoxical as it first appears, for I shall claim that the “idea” whose origin Hume seeks is, in a sense, an idea-type of which the specific idea of necessary connexion is but one instance. Various lines of evidence support this claim, but my main argument will rest on its ability to solve four puzzles in Hume’s text, which are otherwise hard to explain away. These are: (S) the synonymy puzzle, posed by Hume’s apparently reckless assertion that “efficacy”, “agency”, “power”, “force”, “energy”, “necessity”, “connexion”, and “productive quality” are all virtual synonyms; (C) the complexity puzzle, that Hume seems to ignore the possibility that his target idea might be complex rather than simple; (V) the vulgar problem, which arises from Hume’s acknowledgement that the vulgar believe in “chancy” causes, even though he takes the very concept of causation to involve necessity; and (P) the probability problem, of how an allegedly simply idea whose central core involves inexorable necessity could possibly provide a basis for probability. The paper ends by drawing further support from an analysis of Hume’s two sections “Of the idea of necessary connexion”, showing that his use of the various relevant terms makes good sense on the thesis proposed, thus corroborating the arguments presented.

The problem of the morality of abortion is one of the most complex and controversial in the entire field of applied ethics. It may therefore appear rather surprising that the most popular proposed “solutions” to it are extremely simple and straightforward, based on clear-cut universal rules which typically either condemn abortion severely in virtually every case or else deem it to be morally quite unproblematic, and hence permissible whenever the mother wishes. This polarised situation in the theoretical debate, however, is in clear contrast with the abortion law in many countries (including Britain), where abortions are treated very differently according to the stage of pregnancy at which they are carried out, so that early abortions are permitted relatively easily, whereas very late abortions are sanctioned only in exceptional cases. It seems likely, moreover, that in thus taking account of the time of an abortion, the law genuinely reflects the weight of public opinion - there may be no overall consensus on the underlying moral issues, but it does appear to be part of “commonsense” morality to accept that, whatever the ultimate rights and wrongs of abortion in general may be, at any rate abortion early in pregnancy is morally greatly preferable to late abortion. Let us call this “the developmental view”, since it holds that the moral gravity of abortion increases with the degree of development of the fetus.

Yujin Nagasawa accuses me of attributing to Anselm a principle (the 'principle of the superiority of existence', or PSE) which is not present in his text and which weakens, rather than strengthens, his Ontological Argument. I am undogmatic about the interpretative issue, but insist on a philosophical point: that Nagasawa's rejection of PSE does not help the argument, and appears to do so only because he overlooks the same ambiguity that vitiates the original. My conclusion therefore remains: that the fatal flaw in Anselm's argument—as in many other variants—is a relatively shallow ambiguity rather than a deep metaphysical mistake

This companion to the study of one of the great works of Western philosophy--David Hume's Enquiry concerning Human Understanding (1748)--provides a general overview of the Enquiry, especially for those approaching it for the first time, and sets it in the context of Hume's philosophical work as a whole. It elucidates, analyzes, and assesses the philosophy of the Enquiry, clarifying its interpretation and discussing recent developments in Hume scholarship that are relevant to the Enquiry. The eminent contributors to this volume cover a broad range of topics: meaning, induction, skepticism, belief, personal identity, causation, freedom, miracles, probability, and religious belief

Any argument which attempts to prove God's existence a priori based only on His nature can be termed an "Ontological Argument". Historically, however, the term is inextricably associated with the famous argument presented in Anselm's Proslogion chapter II, and with the later variant advanced by Descartes in his fifth Meditation and subsequently developed by Leibniz. Some have claimed that Anselm's argument was anticipated in the thought either of various classical philosophers (notably Aristotle, Parmenides, Plato, and Zeno of Cition) or of Augustine, but although there are indeed suggestive passages in their writings, Anselm's explicit "proof" of God's existence based on his Nature does appear to be a genuinely original discovery.

Over the last three years Hume’s use of the term “a priori” has suddenly become very topical. Three discussions, by Stephen Buckle, myself, and Houston Smit, all focusing on Hume’s argument concerning induction in Section IV of the Enquiry, have independently picked up on this question, which seems previously to have gone almost unnoticed.1 That there is an issue here can be seen by examining what Hume says when considering the foundation of our inferences concerning matter of fact; why, for example, we expect a billiard ball to move in a particular way when struck by another: “I shall venture to affirm, as a general proposition, which admits of no exception, that the knowledge of [cause and effect] is not, in any instance, attained by reasonings a priori; but arises entirely from experience … Let an object be presented to a man of ever so strong natural reason and abilities; if that object be entirely new to him, he will not be able, by the most accurate examination of its sensible qualities, to discover any of its causes or effects. … No object ever discovers, by the qualities which appear to the senses, either the causes, which produced it, or the effects, which will arise from it; nor can our reason, unassisted by experience, ever draw any inference concerning real existence and matter of fact.” (E 27, 4.6) In this passage Hume is clearly allowing an object’s “qualities which appear to the senses” as being available to Reason “unassisted by experience”. So what he counts as “experience” seems essentially to involve some memory of prior experience, rather than merely current experience.

As a particular enthusiast for the first Enquiry, Hume’s definitive presentation of his epistemology and metaphysics ☺, I eagerly awaited the new Oxford editions for many years (from when they were initially announced under the aegis of Princeton). Although the Selby- Bigge edition of the Enquiries has done good service, most notably in its role of providing a widely agreed convention for references to Hume’s texts, I have always found it a bit strange that it should be generally thought of as a relatively reliable edition - if this is so, then I think it says more about the competition than it does about the Selby-Bigge edition itself. For example.