The only way to learn mathematics is to do mathematics.

"To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment."

我想成为一个能打动人们心灵的歌手。

We are all capable of understanding the deepest secrets of the universe.

Freedom is nothing but a chance to be better.

The goal of behavior is always the reduction of some drive or need.

If you want to be a leader, you have to be willing to make unpopular decisions.