物资用完了才知道不足，是因为不懂得计量；事情做完了才知道有余，是因为不懂得调节。

Science without religion is lame, religion without science is blind.

睁开眼睛，看看内心。你对你现在的生活满意吗？

我们今天种植的每一棵树都是为我们永远不会见到的后代留下的遗产。

I believe in the passion of creation and that dreams are more powerful than facts.

True education is learning to think.

Love well, whip well.

To write a life is to assemble a mosaic where some pieces are inevitably missing.