Our self-conception derives mostly from our own experience. We believe ourselves to be conscious, rational, social, ethical, language-using, political agents who possess free will. Yet we know we exist in a universe that consists of mindless, meaningless, unfree, nonrational, brute physical particles. How can we resolve the conflict between these two visions?

In Freedom and Neurobiology, the philosopher John Searle discusses the possibility of free will within the context of contemporary neurobiology. He begins by explaining the relationship between human reality and the more...