Activity is the only road to knowledge . (George Bernard Shaw , British dramatist) 行动是通往知识的唯一道路 。 (英国剧作家 肖伯纳. G.)

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　　A free man obtains knowledge from many sources 1 besides books . (Thomas Jefferson , American president) 一个自由的人除了从书本上获取知识外，还可以从许多别的来源获得知识。( 美国总统 杰斐逊 . T.)

　　A great part to the information I have was acquired by looking up something and finding something else on the way .(Adams Franklin , American humorist ) 我的大部分知识都是这样获得的：在寻找某个资料时意外的发现了另上的资料。