The human being is essentially self-determining; he becomes what he wills himself to be.
人类本质上是自我决定的；他成为他意愿自己成为的样子。
Inspiration comes from everywhere, but especially from the people around me.
"Experience is simply the name we give our mistakes."
The best way to learn mathematics is to do mathematics.
We are all of us made by what we have done, and what has been done to us.
Memory is not fixed; it’s a skill you can train.