数学的进步是通过它能解决的问题数量来衡量的。
The stock market is filled with individuals who know the price of everything, but the value of nothing.
If my doctor told me I had only six minutes to live, I wouldn’t brood. I’d type a little faster.
The secret to happiness is to face the fact that the world is horrible.
No one can tell what goes on in between the person you were and the person you become.
继续梦想，继续创造。