"Be yourself; everyone else is already taken."
有时候，你能做的最激进的事就是留下来。
穷人的决策往往理性得令人心碎。
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between proofs and the best mathematician can notice analogies between theories.
"The only thing that is certain is uncertainty."
