I think of a hero as someone who understands the degree of responsibility that comes with his freedom.

War is an ugly thing， but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war， is much worse.

Talent is how quickly your skills improve when you invest effort. Effort is what makes skill productive.

一个理论的前提越简单，它关联的不同事物越多，其适用范围越广，这个理论就越令人印象深刻。

我们不是在创造物体，而是在创造场所。