这是我个人的一小步，却是全人类的一大步。

不要因为别人辜负我就打消行善济人的念头，想想我当初帮助别人时，只不过是在同情心驱使下做出的举动，并未想着要别人报答。至于说遇上了忘恩负义的人，不必与之计较，付之一笑罢了。

I think the best movies are the ones that make you think, that challenge you.

Without ecological balance, there is no real economic benefit.

The habit of committing far more time to learning and thinking than to doing is no accident.