A wise man once said that you should never believe something just because you want it to be true.
知识不会使我们更丰富;它使我们越来越远离神话世界——这个我们曾经的天然家园。
The best way to learn mathematics is to do mathematics.
你无法回到过去改变开头,但你可以从现在开始改变结局。