最好的故事是那些萦绕在你心头的故事。
The best stories are those that haunt you.
I don't count my sit-ups. I only start counting when it starts hurting.
The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.
I'm not afraid of failing. I'm afraid of not trying.
"The best way to find out who you are is to get lost in a book."