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.

最大的安逸，就是知足乐和；最大的危险，就是多言致祸；最为可贵的，就是无欲无求；最为卑贱的，就是贪欲过多；最大的快乐，就是乐善好施；最大的痛悔，就是贪图钱财；最大的长处，就是足智多谋；最大的短处，就是自负自矜；最大的聪明，就是体察天功，最大的昏暗，就是不明征兆。

化学的乐趣在于实践，而不仅仅是发现。

I’m not a perfectionist, but I like to feel that things are done well.