A man is the sum of his misfortunes. One day you'd think misfortune would get tired but then time is your misfortune.
In mathematics, the journey is as important as the destination.
所有模型都是错误的,但有些是有用的。
在你20多岁的时候,是发展你职业生涯的最佳时机。
The only real power is the power of love.