This book goes straight to the core of human nature and social operation, and focuses on the core dimensions of human nature, interpersonal relationships, family, survival and wealth. It reveals the coexistence of greed and gray in human nature, points out that the essence of interpersonal relationships is the exchange of interests, and emphasizes the importance of a sense of boundaries and one's own value. It analyzes the realistic logic in family relationships and marriage, and points out that money is the basis for survival, and the strong mind is the key to gaining a foothold. The book contains sharp insights into social rules, class differences, and wisdom in life. It breaks traditional cognitive misunderstandings and provides practical rules for complying with human nature, protecting oneself, and realizing value, helping readers see through the truth of the world and gain a clear foothold in a complex society.
