The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.

我不再是个孩子了，我是个年轻人。

International cooperation is the key to solving global fishery problems, working behind closed doors doesn't work.

The greatest asset a trader has is patience.

No president who performs his duties faithfully and conscientiously can have any leisure.

森林是地球的肺，我们必须像保护自己的健康一样紧迫地保护它们。