Advice like these are not laws. They are like hats. If one doesn’t fit， try another.

If we want to protect forests, we must first understand them.

Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.

I think the only way to conquer fear is to tell it to go to hell.

不要害怕失败，要害怕不去尝试。

当你热爱你所做的事情时，获得动力并不难。

自由主义与共产主义之间，或民主与威权主义之间的伟大意识形态斗争，以前者的胜利告终。

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.