The Descent of Man and Selection in Relation to Sex - Charles Darwin's Evolutionary Science Book | Perfect for Anthropology Studies & Evolutionary Biology Research" （注：根据要求将中文翻译为英文，添加了作者名和书籍类型说明以增强SEO，并补充了学术研究使用场景）

This was added to my personal Library of major works that have altered the course of our human existance. At 72 I am trying to keep my mind engaged and build a lasting gift for generations of my family. Well rounded knowledge will assure the USA remains a force for good and finally America's radical right will be over powered. KNOWLEDGE for the future of the WORLD has a solid foundation and the Decent of Man and Selection in Relation to Sex is a primary early building block to the future of mankind.