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Life is a series of choices.

"The comeback is always stronger than the setback."

優秀的數學家不是知道所有答案的人，而是能提出正確問題的人。

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.

吾受名所累甚矣。所到之處，無人不識。喬裝改扮亦無用也。困囿于輪椅，無所遁形。

改進決策最有力的工具是反饋。