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在數學中，提出問題的藝術必須比解決問題更有價值。

我不害怕跌倒，因為我知道我會重新站起來。

The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it; and habit fills up what remains.

In life, unlike chess, the game continues after checkmate.

你不能通過削減來實現增長。真正的進步來自于投資和遠見。

"We are all in the gutter, but some of us are looking at the stars."