In The Meaning of Human Existence, his most philosophical work to date, Pulitzer Prize-winning biologist Edward O. Wilson examines what makes human beings supremely different from all other species and posits that we, as a species, now know enough about the universe and ourselves that we can begin to approach questions about our place in the cosmos and the meaning of intelligent life in a systematic, indeed, in a testable way.

The task of understanding human beings, what we ourselves are, our constitution and condition, is a perennial problem in philosophy and related disciplines. Smith argues here that our understanding of human persons is threatened by technological development and capricious academic theories alike, seeking to deny or relativize the personhood of humanity. Smith's book puts a stake in the ground, in defense of a view of the human that is genuinely humanistic...