I must study politics and war that my sons may have liberty to study mathematics and philosophy.

当一个孩子问出一连串的「为什么」的时候，最聪明的回复就是「我不知道，你是怎么想的呢？」

"To write is to breathe, to live, to exist beyond the boundaries of time."

过早的优化是万恶之源。

过去是我们现在的一部分，因此也是我们未来的一部分。

I don't feel like I have to please anyone. I feel free. I feel like I'm an adult. I'm grown. I can do what I want. I can say what I want. I can retire if I want. That's why I've worked hard.

释义：勇敢的人敢闯天下，什么事情都能做成；过于谨慎的人却处处束手束脚，一步也难以前行。