Abstract

My dissertation is about the scope and limits of practical rationality. Specifically, it is intended as a critical essay on instrumental rationality; it will also include some suggestions on how to go beyond instrumental rationality. ;The instrumental conception of rationality expresses a recurrent theme in modern contemporary philosophy. This theme made its first formidable appearance in the work of Hobbes, and since then it has dominated most of the debates about the objectivity of moral values, personal values, and ideals. Depending on their aspirations, the participants of these debates have either accepted the instrumental theme or wanted to expose its shortcomings. ;The instrumental theme is identified with two complementary theses. According to the first thesis, humans are identified as desire-maximizers who are motivated to act only by their actual desires, inclinations, and dispositions. Under this conception, even morality is perceived as being a set of prudential precepts reducible to the agent's concern with the satisfaction of his desires . ;According to the second thesis, rational deliberation has only the limited function of selecting effective means to satisfying one's desires. That is, rational deliberation does not involve the furnishing of the practical agent with new desires and goals, nor are his desires and goals susceptible to rational appraisal. The rationality of a person is a direct function of his capacity to select proper means for satisfying his desires: the more efficient the means, the more rational the person's conduct. The skeptical thrust of the second thesis amounts to the denial of intrinsic value to any desire or goal. ;My critical discussion of the instrumental conception is intended to show two things. First, the ultimate goal of humans cannot be identified solely with the satisfaction of desires; and second, reason is capable of doing more than just selecting efficient means for satisfying one's desires. The idea guiding my critical discussion of the instrumental conception is that personal values and ideals are susceptible to rational appraisal--an appraisal that contributes essentially to the conception of what it means to be rational. Indeed, this kind of appraisal is what carries us beyond instrumentalism.