战争是一种精神现象。
War is not a profession but an experience.
"Hope is the thing with feathers that perches in the soul."
Decide upon your major definite purpose in life and then organize all your activities around it.
We need to understand the brain to build better AI.
相信有时是痛苦的。但如果停止相信，什么都不会开始。
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
机会不会自己出现，你要去创造它们。
——2006年6月15日，盖茨在宣布将退出微软日常管理工作新闻发布会上的发言