The most important thing is to have a vision of what you want to do and then to have the persistence to carry it out.

井水越是甘甜，就越容易枯竭；树木越是高大，就越容易被砍伐。

Sometimes the most important experiments are the ones that fail, because they teach us what doesn't work.

Every challenge is an opportunity in disguise; you just have to look for it.