今天种植的每一棵树都是留给后代的遗产。

I don't think you can ever do your best. Doing your best is a process of trying to do your best.

The moment you doubt whether you can fly, you cease forever to be able to do it.

你无法取悦所有人，所以不要尝试。

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

永远不要停止学习，世界总是在变化。