事实上，我不知道如果没有数学我会做什么。
The truth is, I don't know what I would have done without mathematics.
Never underestimate the power of persistence. Most people give up too soon.
The world is a great symphony, and we are the notes.
经济发展中最重要的事情不是正确地做事，而是做正确的事情。
The most valuable of all talents is that of never using two words when one will do.
真正的自由不是你想做什么就做什么，而是你不想做什么就不做什么。
What we need to do is not to follow, but to lead.
I have to say to myself that some birds aren't very close. Their feathers are just too bright. When they fly away, you know it's a sin to lock them up, and you'll be inspired by them. Still, the place you live in is that much more drab and empty that they're gone. I think I really miss my friends.
Writing is a way of discovering what you think, of exploring the world and your place in it.