Your self-worth is determined by you. You don't have to depend on someone telling you who you are.

伦理道德的基础是理解爱和争斗在个体和社会中的作用。

为一个不断演变且令人无法抗拒的戏剧形象贴上明确的道德标签，在我看来是肤浅、无礼且不诚实的。

Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.

I am the only person in the world I should like to know thoroughly; but I don’t see any chance of it just at present.

Your 20s are the most defining decade of your life.

成功绝非偶然。它是努力工作、坚持不懈、学习、研究、牺牲，最重要的是对你所做事情的热爱。

The only way to have a friend is to be one.