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沉默是一種語言，它比任何話語都更響亮。

數學直覺就像肌肉一樣 - 通過鍛煉會變得更強大。

我不會把任何事情視為理所當然。我努力爭取一切。

The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.

文學是人類的記憶。

In all things， it is necessary to create a system.

The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.