Histories make men wise ; poems witty; the mathematics subtle; natural philosophy deep ; moral grave ; logic and rhetoric able to contend . (Francis Bacon , British philosopher ) 历史使人明智;诗词使人灵秀;数学使人周密;自然哲学使人深刻;伦理使人庄重;逻辑修辞学使人善辨。( 英国哲学家 培根. F.)

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　　If you don't learn to think when you are young , you may never learn .(Thomas Edison , American inventor ) 如果你年轻时就没有学会思考，那么就永远学不会思考。(美国发明家 爱迪生 . T.)

　　Natural abilities are like natural plants that need pruning by study. (Francis Bacon , British philosopher ) 天生的才干如同天生的植物一样，需要靠学习来修剪。(英国哲学家 培根 . F.)