Lucid and accessible, Twelve Theories of Human Nature compresses into a manageable space the essence of religious traditions such as Confucianism, Hinduism, Buddhism, the Jewish Scriptures, the Christian New Testament, and Islam, as well as the philosophical theories of Plato, Aristotle, Kant, and Sartre, and the would-be scientific accounts of human nature by Marx, Freud, and Darwin and his successors.