Abstract

I consider the general question of whether a study of the life of a philosopher can help us to understand his/her philosophical principles. This topic is narrowed to the consideration of principles of moral and political philosophy, especially in instances in which the philosopher deliberately uses the experiences of his/her own life in formulating his/her views. Such use raises the problem of justification of the self as sampIe. As part of my general defense of the merits of studying a life to grasp a philosophy, I argue that the meaning of a principle in the philosophy of X can be illuminated by trying to recognize what that principIe meant to X. All of these general issues are deployed in my study of the philosophy of John Stuart Mill. In particular I focus on five points, the understanding of which I feel is deepened by studying how they involved his own life. These five are: a change in tone in ch. III of On Liberty, his conviction about free will, his commitment to a principle of vigorous action, his principle of balanced growth, and his fundamental axiom of Individualism.