喜欢攻击别人的人，常危及自身，如果自己甘心当愚者，却能恰恰成就自保其身的智慧；喜好自我吹嘘的人，被众人取笑，自以为得计耍小聪明，却恰恰表现出他自欺欺人的愚昧。
The mind is a system of organs of computation, designed by natural selection to solve the kinds of problems our ancestors faced in their foraging way of life.
爱是什么样子？它有双手来帮助他人。它有双脚匆匆赶往穷人和需要帮助的地方。它有眼睛看到痛苦和贫困。它有耳朵听到人们的叹息和悲伤。
It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong.
有用是这些老人曾经对自己最好的希望，而无目的是他们最深的恐惧。