"The goal of mathematics is to understand the universe."

You're going to pay a price for every bloody thing you do and everything you don't do. You don't get to choose to not pay a price. You get to choose which poison you're going to take. That's it.

没有人想死。即使那些想上天堂的人，也想活着上天堂。

The best books are those that change the way you think.