"On Aggression" is a scientific study that explores the concept of aggression in both animals and humans from an ethological (study of animal behavior) perspective. The author argues that aggression is an innate and necessary instinct that has helped species survive and evolve. However, he also emphasizes that this instinct, when unchecked or misdirected, can lead to destructive behavior and violence. The book provides a comprehensive analysis of the biological roots of aggression, its role in the evolution and survival of species, and its implications for human society.

This book is a profound exploration of the psychological impact of war and death on the human psyche. The author, a renowned psychologist, delves into the collective guilt and anxiety experienced by society during wartime, and the denial of death's inevitability as a self-preserving mechanism. He also discusses the disillusionment that arises when the veneer of civilization is stripped away, revealing the primal instincts beneath. The book is a deep, philosophical discussion about the human condition, morality, and the psychological consequences of war and death.