Sometimes we get sad about things and we don’t like to tell other people that we are sad about them. We like to keep it a secret. Or sometimes, we are sad but we really don’t know why we are sad, so we say we aren’t sad but we really are.

我们拥有的最有价值的资源不是地下的矿石，而是每天来工作的人们。

在没有生命力的帮助下合成尿素是一个极其重要的事实。

Profit and purpose are not opposites; they must go hand in hand.

I'm not a person who looks back. I'm always looking forward.

All happy families are alike; each unhappy family is unhappy in its own way.

作家必须成为他们时代的见证者。