Activity is the only road to knowledge .

　　行动是通往知识的唯一道路。

　　A free man obtains knowledge from many sources besides books .　　

　　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。　

　　A great part to the information I have was acquired by looking up something and finding something else on the way 。

　　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。　　

　　If a man empties his purse into his head , no man can take it away from him , an investment in knowledge always pays the best interest .　　

　　倾已所有追求知识，没有人能夺走它;向知识投资，收益最佳。

　　Imagination is more important than knowledge .

　　想象力比知识更为重要。

　　Knowledge is power.

　　知识就是力量。 英国哲学家 培根。 F.

　　The empty vessels make the greatest sound .

　　满瓶不响，半瓶咣当。