Christian de Duve, a Nobel Prize-winning biologist, takes readers on a journey through the biological world, from the tiniest cells to the future of life. He argues that life was bound to arise and discusses the evolution of humans, consciousness, language, science, emotion, morality, altruism, and love. De Duve concludes by speculating on humanity’s future, including the possibility of evolving into a new species, and shares his thoughts on God and immortality. This wise and humane book sums up his learnings about life and our place in the universe.