"To write is to breathe, to live, to exist in the fullest sense."

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.

We are all shaped by the invisible hand of evolution.

有机化学现在在我看来就像一片原始热带森林，充满了最非凡的事物，一个可怕的、无尽的丛林，人们不敢进入，因为似乎没有出路。

解释：饿了再吃，粗茶淡饭味道也像吃肉一样可口。安稳走路就不会感觉到劳累，权当坐车。