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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.

品質(zhì)始于土壤。健康的土地才能長(zhǎng)出健康的水果。

The only way to learn mathematics is to do mathematics.

我認(rèn)為你永遠(yuǎn)不能停止學(xué)習(xí)?？傆行碌臇|西等待發(fā)現(xiàn)。