knowledge comes from experience alone 知识来自实践。 knowledge is a city to the building of which every human being brought a stone 知识是一座城堡，每小我私家都应为它增砖添...
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Knowledge comes from experience alone 知识来自经验。 Two of a trade seldom agree 同行是冤家。 By other's faults, wise men correct their own 他山之石，可以攻玉。
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