Christine Tappolet

Some concepts, such as colour concepts or value concepts, seem to bear traces of the mind's own make-up. For instance, the character of perceptually-determined colour concepts seems in some sense derivative from the character of the visual system. Thus, it has seemed plausible to claim that the corresponding colour properties are dispositions to elicit certain visual experiences in normal observers under suitable conditions. Much the same has been suggested for value concepts. An extreme position would be that colours and values therefore are not in the world at all, they instead are mere projections that tell us more about the users of response-dependent concepts than about the world they inhabit. But even setting aside such extreme views, a number of important philosophical and psychological questions remain open. What exactly is response-dependence, and does any concept have this feature? What is the appropriate metaphysics for properties represented by response-dependent concepts, and for these concepts themselves? What determines the extension of such properties? How are we to account for knowledge expressed in terms of response-dependent concepts? What mechanisms correctly explain the origins of response-dependent concepts, and their role in representation? This volume brings together a wide range of views on these questions.

This introduction consists in a historical overview of the debate about practical irrationality, as illustrated by weakness of will. After a brief reminder of the discussions after Davidson, we consider three important moments of the debate: the ancient debate from Socrates to Xenophon, the medieval debate from Augustine to Buridan, and the modern debate after Descartes. We suggest that it is useful to distinguish weakness of will (a failure to act as one wills) from so-called strict akrasia (a failure to will according to one's better judgment) and raise the question of the metaphysical underpinnings of the internalism/externalism debate.

Are values objective or subjective? To clarify this question we start with an overview of the main concepts and debates in the philosophy of values. We then discuss the arguments for and against value realism, the thesis that there are objective evaluative facts. By contrast with value anti-realism, which is generally associated with sentimentalism, according to which evaluative judgements are grounded in sentiments, value realism is commonly coupled with rationalism. Against this common view, we argue that value realism can be combined with sentimentalism, and we suggest that a plausible account, which we call ‘sentimental realism’, and according to which evaluative judgements are closely related to emotions, can be developped.

The special concern we have for our future selves is often seen as making for a problem for psychological continuity theories, such as Derek Parfit's. On the basis of an account of the various kinds of procrastination, and of the ways imprudent procrastination involves harm to future selves, the paper argues that procrastinators often impose an uncompensated burden on their future selves, something that is best explained by a lack of concern for their future selves. Given this, the objections to psychological continuity theories based on the idea of a special concern for our future selves are in serious trouble.