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A proof is a device for convincing someone else that a mathematical statement is true.

歷史不僅是發生的事，更是我們記住的事以及記住的方式。

Twenty years of romance make a woman look like a ruin; but twenty years of marriages make her look like a public building.

We don't inherit the earth from our ancestors; we borrow it from our children—this must guide every business decision.

Don’t let your dreams be dreams.

最好的尚未到來。