A penny earned is a penny saved.
你所赚的钱便是省回来的钱。
生活是一件非常稀有的事情。
不可持续捕捞的真正成本远高于我们表面所看到的。
The spirit of a man is the most valuable thing in the world.
You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject for ever.
人们并不总是理性的，他们的非理性行为可能会产生重大的经济后果。