"This book by one of the world's leading moral philosophers argues that the key to a fulfilled life is to pursue wholeheartedly what one cares about, that love is the most authoritative form of caring, and that the purest form of love is, in a complicated way, self-love." "Harry Frankfurt writes that it is through caring that we infuse the world with meaning. Caring provides us with stable ambitions and concerns; it shapes the framework of aims and interests within which we lead our lives. The most basic and essential question for a person to raise about the conduct of his or her life is not what he or she should care about but what, in fact, he or she cannot help caring about."--Jacket.