世界上的围墙都是防止外面的人闯进来的，只有一种围墙是防止里面的人出去的，那是什么？那就是监狱的围墙
——1963年6月25日在西德市政厅柏林墙前的演说
质量不是偶然；它是一种决定。
One way of looking at speech is to say that it is a constant stratagem to cover nakedness.
I have no ideas about what the paintings imply about the world. I think it's better if I don't know.
Technology should be about more than just efficiency; it should be about enhancing human well-being.
技术不应仅仅关乎效率；它应该关乎提升人类的福祉。
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
改进程序的最好方法是重写它。