The best way to predict the future is to invent it.

A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else. Men’s happiness or misery is most part of their own making. He, whose mind directs not wisely, will never take the right way; and he, whose body is crazy and feeble, will never be able to advance in it.

明明可以享受快乐却不去把握，为什么要自寻烦恼呢？

The only thing we have to fear is fear itself.

地理带的研究揭示了自然界的统一性，尽管它表面上看起来多样。