I do not wish them [women] to have power over men; but over themselves.

自然选择是残酷的。

When you're different, sometimes you don't see the millions of people who accept you for what you are. All you notice is the person who doesn't.

勇敢就是无条件地爱一个人，而不期待任何回报。

To solve a mathematical problem is to uncover a piece of the universal puzzle.