书籍就像一面镜子。如果一头驴子往里看，你不能指望一个天使会往外看。
"Books are like a mirror. If an ass looks in, you can't expect an angel to look out."
I don't want to be a role model. I want to be a human being.
数学家沉浸在他的符号洪流中，表面上处理纯粹的形式真理，仍然可能得出对我们描述物理宇宙具有无尽重要性的结果。
最危险的幻觉是被我们误认为现实的那些。
A method of solution is perfect if we can foresee from the start, and even prove, that following that method we shall attain our aim.
Whether we are describing a king, an assassin, a thief, an honest man, a prostitute, a nun, a young girl, or a stallholder in a market, it is always ourselves that we are describing.