如果你不顽强，你就会过早放弃试验。如果你不灵活，你就会以头撞墙，而不会找到解决问题的不同办法。
On pivoting: "If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve."
Pain is the absence of pleasure, pleasure is the absence of pain.
Don't be afraid to make mistakes, but learn from them quickly.
I don’t want to be compared to anyone. I want to make my own history.
煤炭的未来不在于数量，而在于我们能否清洁高效地利用它。
Mathematics is not a spectator sport.
The biggest risk is not taking any risk.