每一种化合物都必须有确定的组成，这可以用其元素的符号来表示。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

成功的最好方式是帮助别人成功。

我从来对平庸不感兴趣。

Sustainable agriculture requires a balance between technology and ecological preservation.

When I am abroad， I always make it a rule never to criticize or attack the government of my own country。 I make up for lost time when I come home.

做出伟大工作的唯一方法是热爱你所做的事情。

每个故事都是一次旅程，每次旅程都是一个故事。