The more things a man is ashamed of, the more respectable he is.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

有创造力的成年人就是幸存下来的孩子。

在建构伟大事物的过程里，构想是最不重要的成分，它必须是对的构想并有好的品味，但执行与完成才是关键。