In the end, we will remember not the words of our enemies, but the silence of our friends.

A healthy animal is the foundation of a healthy food chain.

如果你做不到，那就去教别人。

一个伟大的故事是在翻完最后一页后仍久久萦绕在脑海中的故事。

The core of the poverty trap: Today’s hunger steals tomorrow’s productivity.

Men fear death as children fear to go in the dark； and as that natural fear in children is increased with tales， so is the other.

Do not use power to suppress opinions you think pernicious, for if you do the opinions will suppress you.

真相总是不便的。