This book presents research that supports the naturalistic stance that the mind is identical to the brain. The author argues that if one were to look at the idea that the mind is the brain then it follows logically that free will must be an illusion, that there can be no consciousness separate from the brain, and that there can be no substantial self that exists independently from the brain. He further argues that there can be no such thing as absolute moral responsibility and provides readers with the overall sense that the survival of the human species will depend on a scientific understanding of the human brain.