Rationalism in The Books Store

In this classic work, best-selling author Harry Frankfurt provides a compelling analysis of the question that not only lies at the heart of Descartes's Meditations, but also constitutes the central preoccupation of modern philosophy: on what basis can reason claim to provide any justification for the truth of our beliefs? Demons, Dreamers, and Madmen provides an ingenious account of Descartes's defense of reason against his own famously skeptical doubts that he might be a madman, dreaming, or, worse yet, deceived by an evil demon into believing falsely.

Frankfurt's masterful and imaginative reading of Descartes's seminal work not only stands the test of time; one imagines Descartes himself nodding in agreement.

Modern philosophy has been vexed by the question "Why should I be moral?" and by doubts about the rational authority of moral virtue. In Reasons without Rationalism, Kieran Setiya shows that these doubts rest on a mistake. The "should" of practical reason cannot be understood apart from the virtues of character, including such moral virtues as justice and benevolence, and the considerations to which the virtues make one sensitive thereby count as reasons to act.

Proposing a new framework for debates about practical reason, Setiya argues that the only alternative to this "virtue theory" is a form of ethical rationalism in which reasons derive from the nature of intentional action. Despite its recent popularity, however, ethical rationalism is false. It wrongly assumes that we act "under the guise of the good," or it relies on dubious views about intention and motivation. It follows from the failure of rationalism that the virtue theory is true: we cannot be fully good without the perfection of practical reason, or have that perfection without being good.

Addressing such topics as the psychology of virtue and the explanation of action, Reasons without Rationalism is essential reading for philosophers interested in ethics, rationality, or the philosophy of mind.

One of the world's most important political philosophers, Jon Elster is a leading thinker on reason and rationality and their roles in politics and public life. In this short book, he crystallizes and advances his work, bridging the gap between philosophers who use the idea of reason to assess human behavior from a normative point of view and social scientists who use the idea of rationality to explain behavior. In place of these approaches, Elster proposes a unified conceptual framework for the study of behavior.

Drawing on classical moralists as well as modern scholarship, and using a wealth of historical and contemporary illustrations, Reason and Rationality marks a new development in Elster's thinking while at the same time providing a brief, elegant, and accessible introduction to his work.