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 world, as a rule, does not live on beaches and in country clubs.
It is in your self-interest to find a way to be very tender.
These are the times that try men's souls.
口是伤人斧，言语锐如刀，语言的力量巨大，学会好好说话。
我不让消极情绪影响我，我只是继续前进。
世界是一本书，不旅行的人只读了一页。