浅陋的人,不能和他谈论深奥的见解;愚蠢的人,不能和他谋划有智慧的事。井底之蛙,不能和它谈论东海的快乐。
Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.
The biggest mistake you can make is believing you know everything. Stay humble and keep learning.