Three things you need: The ability to not give up something till it works， the ability to give up something that does not work， and the trust in other people to help you distinguish between the two.

Rigor in proof is what separates mathematics from all other sciences.

You don't write because you want to say something, you write because you have something to say.

Vulnerability is the most powerful position you can take as an artist.

正是因为国家倾向于愚蠢和卑劣，民主才有可能。

The best way to be successful is to never give up.