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"The line between hero and villain is often blurred by perspective."

The greatest discovery of any generation is that a human being can alter his life by altering his attitude.

"The best way to learn is to do it, to make mistakes, and to learn from them."

The trick is to pay attention to what's happening around you and to keep writing.

因此可以知道，天是希望人們互相關(guān)愛、互相幫助，而不希望人們互相憎惡、互相殘害的。?

On innovation: "I think frugality drives innovation， just like other constraints do. One of the only ways to get out of a tight box is to invent your way out."

對較大收入征收較高比例的稅收，等于對工作和節(jié)儉征收了一項稅收；對人們因為工作更努力、儲蓄更多而征收罰款。

數(shù)學(xué)的快樂來自于復(fù)雜事物變得簡單的清晰時刻。