Eternal truths will be neither true nor eternal unless they have fresh meaning for every new social situation. (Franklin Roosevelt, American president )

　　E永恒的真理如果不在新的社会形势下赋予新的意义,要么就不是真理,要么就不是永恒的。 (美国总统 罗斯福. F.)

　　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.)

　　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.)

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