Real suffering does not come from outside, but from how we understand it.

自然是最好的向导，追随她的人必定不会犯错。

Sometimes the simplest solutions in chemistry are the most elegant and powerful.

The walls of the educational system must come down. Education should not be a privilege, so the children of those who have money can study.

不忘初心，方得始终，我们要始终牢记"我为祖国献石油"的使命。

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

I hope that in this year to come, you make mistakes. Because if you are making mistakes, then you are making new things, trying new things, learning, living, pushing yourself, changing yourself, changing your world. You're doing things you've never done before, and more importantly, you're doing something.