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。
Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.
偏见是愚人用来代替理智的东西。
Don't wait until everything is just right. It will never be perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stronger and stronger, more and more skilled, more and more self-confident and more and more successful.
"In computer science, we are always trying to find the balance between expressiveness and tractability."
