对认可的渴望，灵魂中的激情部分，是人格中最基本的人性部分。
The desire for recognition, the thymotic part of the soul, is the most fundamentally human part of the human personality.
The true value of a mathematical theory lies in its ability to connect seemingly unrelated ideas.
不理解一个人，就往往会把他当成傻瓜。
存在不是它自己的理由。
In the end, I've found that it doesn't really matter who you marry. If you like them at the beginning, you probably won't like them at the end. And if you start off hating them, there's always the chance you'll end up thinking they're all right.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
The more I learn, the more I realize how much I don’t know.
一件事情都不能做到有始有终，就不要去操持其他的事情；一物也不明白，就不要追求博闻广记。