概率论归根结底不过是常识的微积分。
The theory of probabilities is at bottom nothing but common sense reduced to calculus.
The best time to negotiate your salary for a new job is the moment AFTER they say they want you， and not before. Then it becomes a game of chicken for each side to name an amount first， but it is to your advantage to get them to give a number before you do.
这不是关于腿，而是关于心和思想。
我开始相信，一位伟大的教师是一位伟大的艺术家，而且像其他伟大的艺术家一样稀少。教学甚至可能是最伟大的艺术，因为媒介是人的思想和精神。
永远不要满足于现状，始终追求更好。