Just why is self-knowledge such a prestigious good? What are the dangers that come with a lack of self-knowledge? And what do we in fact need to know about ourselves? This entertaining guide focuses on the areas of self-knowledge that matter most in life: the areas concerned with the inner psychological core of the self. Self-knowledge isn’t so much a set of statements that one gives assent to. Rather, it’s a set of capacities for dealing better with one’s needs and weaknesses and generally being better at handling oneself.