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The most glorious moments in your life are not the so-called days of success, but rather those days when out of dejection and despair you feel rise in you a challenge to life, and the promise of future accomplishment.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

The writer's only responsibility is to his art. He will be completely ruthless if he is a good one... If a writer has to rob his mother, he will not hesitate; the "Ode on a Grecian Urn" is worth any number of old ladies.

實現長期成功的唯一方法是在社會中創造真正的價值。

The thing that we are trying to do at Facebook, is just help people connect and communicate more efficiently.

Happiness is not something that happens. It is not the result of good fortune or random chance. It is not something that money can buy or power command. It depends not on what happens outside of you, but on what happens inside of you.

我把它當作每天都是一個新的挑戰，我必須每天變得更好。