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The tyrant dies and his rule is over, the martyr dies and his rule begins.

數(shù)學(xué)中最深刻的洞見往往來自意想不到的類比。

The most important quality in a scientist is persistence.

沾沾自喜時，應(yīng)該約束反??；怒不可遏時，應(yīng)該約束反省；怠倦懶惰時，應(yīng)該約束反省；思想狂放時，應(yīng)該省約束反。