如果不改善个人，就无法希望建立一个更美好的世界。为此，我们每个人都必须为自己的进步而努力，同时为全人类承担共同的责任。

Courage is not the absence of fear, but the triumph over it.

To understand the universe, you must understand the language in which it is written, and that language is mathematics.

I'm not going to change who I am just because people want to see something else.