Richard Wrangham, primatologist and anthropologist, specialist in the field of primate evolution, professor at Harvard University, examines in detail and clearly the scientific debate on the most important issues: why people, representatives of a single biological species, are characterized by both amazing kindness and unimaginable cruelty; how these qualities, sometimes going far beyond the limits of common sense, appeared and became established during the evolutionary history of mankind; where do we get moral feelings, concepts of good and evil; and most importantly, are we doomed by our evolutionary paradox to the eternal threat of violence? The publishing layout of the book is saved in PDF A4 format.