写作是记住，而阅读是忘记。
To write is to remember, but to read is to forget.
To succeed, you need to create value for others, and that requires understanding what others value.
人将会死，国家会建立亦会倾颓；但思想将永远长存。思想可承受的远大过死亡。
对称性不仅是自然的一种属性，而且是寻找物理定律的指导原则。
"I never set out to create a classic. I just wanted to tell a story."