Solar Conscience Lunar Conscience: An Essay on the Psychological Foundations of Morality, Lawfulness, and the Sense of Justice

"Soren Kierkegaard's Purity of Heart Is to Will One Thing fell into my hands when I was twenty years old. I was traveling alone, seeing Europe for the first time, and being without a great deal of money, was not seduced by the sensuous pleasures of the Parisian world. I had found a paperback English translation on sale in a bin of used books outside a bookshop. Purity of Heart became one of the two or three most important books of my life."

"I felt myself become the individual to whom Kierk...