Education is an admirable thing. But it is well to remember from time to time that nothing that is worth knowing can be taught.

你和上帝之间唯一的区别是你忘记了自己是神圣的。

我会用city而永不用Metropolis来表达城市，用cop而永不用policeman来表达警察，既然三丶四个字母可以赚七个美分，为什么要用长而赘的字呢？

当我们保护生物多样性时，我们就是在保护人类的安全网。

好设计的关键在于理解力。

行为主义的理想是消除强制：通过改变环境来实施控制，从而强化对每个人都有益的行为。

The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.

The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

Man will not merely endure: he will prevail.