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To be happy is only to have freed one's soul from the unrest of unhappiness.

Quality should never be compromised for the sake of speed.

The goal of education is not to increase the amount of knowledge but to create the possibilities for a child to invent and discover, to create men who are capable of doing new things.

"We are all the heroes of our own stories."

真相很少是純粹的，也從不簡單。

最好的程序是既能被計算機(jī)快速執(zhí)行，又能被人類清晰理解的程序。