Every harvest teaches us something new; the land is the best professor if we're willing to listen.
判断两个λ表达式是否等价的问题是无法解决的。
在这里，失败是一种选择。如果事情没有失败，你就没有足够的创新。
The only thing that will redeem mankind is cooperation.
The best way to predict the future is to create it.
No man really knows about other human beings. The best he can do is to suppose that they are like himself.
我不是说唱歌手，我是一个改变思想的人。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.