Gilbert Harman

I begin by summarizing the first two chapters of (Harman 1986). The first chapter stresses the importance of not confusing inference with implication and of not confusing reasoning with the sort of argument studied in deductive logic. Inference and reasoning are psychological events or processes that can be done more or less well. The sort of implication and argument studied in deductive logic have to do with relations among propositions and with structures of propositions distinguished into premises, intermediate steps, and conclusion. Deductive logic is not a particular psychological subject and is not a particularly normative subject, although one might attempt to develop a logic of belief or a deontic logic, for example.

In (Harman 2007) I argued “that a purely objective account of conscious experience cannot always by itself give an understanding of what it is like to have that experience.” Following Nagel (1974), I suggested that such a gap “has no obvious metaphysical implications. It [merely] reflects the distinction between two kinds of understanding,” objective and subjective, where subjective understanding or “Das Verstehen” (Dilthey 1883/1989) of another creature’s experience involves knowing what it is like to have that experience—knowing what sort of experience of one’s own would correspond to the other creature’s experience.

Gauthier's title is potentially misleading. The phrase “morals by agreement” suggests a social contract theory of morality according to which basic moral principles arise out of an actual or hypothetical agreement. John Rawls defends a hypothetical agreement version, arguing that the basic principles of justice are those that would be agreed to in an initial position of fair equality. I myself defend an actual agreement version, arguing that the moral principles that apply to a person derive from implicit conventions the person has accepted in dealing with other people. Gauthier's view is different from either of these sorts of contract theory. Instead, he holds that certain basic principles of impartiality are prior to actual agreements

What is distinctive about my views in epistemology? One thing is that my concern with epistemology is a concern with methodology. Furthermore, I reject psychologism about logic and reject the idea that deductive rules like modus ponens are in any way rules of inference. I accept a kind of methodological conservatism and reject methodological theories that appeal to special foundations, analytic truth, or a priori justification. Although I believe that there are significant practical aspects of theoretical reasoning, I reject the suggestion that theoretical reasoning is a special case of practical reasoning applied to a special epistemic goal. I also believe that a methodological epistemology that is concerned with the reliability of inferential methods can benefit from an appreciation of important relevant concepts and results about reliability in statistical learning theory.

Change in View offers an entirely original approach to the philosophical study of reasoning by identifying principles of reasoning with principles for revising one's beliefs and intentions and not with principles of logic. This crucial observation leads to a number of important and interesting consequences that impinge on psychology and artificial intelligence as well as on various branches of philosophy, from epistemology to ethics and action theory. Gilbert Harman is Professor of Philosophy at Princeton University. A Bradford Book.

This volume is a direct result of a conference held at Princeton University to honor George A. Miller, an extraordinary psychologist. A distinguished panel of speakers from various disciplines -- psychology, philosophy, neuroscience and artificial intelligence -- were challenged to respond to Dr. Miller's query: "What has happened to cognition? In other words, what has the past 30 years contributed to our understanding of the mind? Do we really know anything that wasn't already clear to William James?" Each participant tried to stand back a little from his or her most recent work, but to address the general question from his or her particular standpoint. The chapters in the present volume derive from that occasion.

The first part of this article discusses recent skepticism about character traits. The second describes various forms of virtue ethics as reactions to such skepticism. The philosopher J.-P. Sartre argued in the 1940s that character traits are pretenses, a view that the sociologist E. Goffman elaborated in the 1950s. Since then social psychologists have shown that attributions of character traits tend to be inaccurate through the ignoring of situational factors. (Personality psychology has tended to concentrate on people's conceptions of personality and character rather than on the accuracy of these conceptions). Similarly, the political theorist R. Hardin has argued for situational explanations of bloody social disputes in the former Yugoslavia and in Africa, rather than explanations in terms of ethnic hatred for example. A version of virtue ethics might identify virtues as characteristics of acts rather than character traits, as traits consisting in actual regularities in behavior, or as robust dispositions that would manifest themselves also in counterfactual situations

Putnam rejects "metaphysical realism," which takes "the world" to be a single complex thing, a connected causal or explanatory order into which all facts fit. he argues that such metaphysical realism is responsible for views he finds implausible; in particular, it can lead to moral relativism when one tries to locate the place of value in the world of fact. i agree that metaphysical realism will lead a thoughtful philosopher to moral relativism, but find neither of these views implausible. in particular, putnam's main argument against metaphysical realism seems fallacious and his suggested alternative, to think of truth as the idea limit of rational inquiry, is clearly incorrect.