The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
In mathematics, the simplest questions often lead to the deepest insights.
The only safe thing is to take a chance.
不要為變老而遺憾。這是許多人求之不得的特權。
I don’t like to do easy things. I like to do things that are challenging and that push me.