我们工作中最大的回报是知道自己带来了改变。
The joy of mathematics comes from the struggle to understand.
"A man is rich in proportion to the number of things he can afford to let alone."
I give the fight up: let there be an end, a privacy, an obscure nook for me. I want to be forgotten even by God.
The only thing that's really important is whether the work moves you or not.