----- 勇士与忧心者:论两性的生存之道
Chapter 1. Introduction: What is the Difference Between a Boy and a Girl? Part I Warriors Chapter 2. Enemy Fighting: A Man's Basic Instinct Chapter 3. Male Friends: Recruiting a Fighting Force Chapter 4. Organizing the Military: Groups of Egalitarian Men Part II Worriers Chapter 5. Protecting Herself: A Woman's Basic Instinct Chapter 6. Female Friends: Smile, then Eliminate the Competition Chapter 7. Organizing her Family: The Vulnerable and the Assistants Epilogue
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