人是生而自由的，但却无往不在枷锁之中。自以为是其他一切的主人的人，反而比其他一切更是奴隶。
理论必须是美丽的。
粮食安全的未来就在波涛之下，我们有责任明智地开发它。
他们的服饰不同，他们的行为确是一样的。
Whatever is well conceived is clearly said, And the words to say it flow with ease.
最终，我们记住的不是敌人的话语，而是朋友的沉默。
What I want to talk to you about today is the difference between gifts and choices. Cleverness is a gift， kindness is a choice. Gifts are easy -- they're given after all. Choices can be hard. You can seduce yourself with your gifts if you're not careful， and if you do， it'll probably be to the detriment of your choices.
