The true teacher defends his pupils against his own personal influence. He inspires self-distrust. He guides their eyes from himself to the spirit that quickens him. He will have no disciple.

我们只是试图解决一个需要解决的问题。

整体大于部分之和。

我是那种疯狂的人，如果我打了一个女孩的嘴而她还在笑。

一个数学家的真正价值在于他们留下的问题。