Education is an admirable thing. But it is well to remember from time to time that nothing that is worth knowing can be taught.
Precision in experimentation is as important as creativity in hypothesis.
在更有价值的人力和非人力资源的生产中，思想是关键投入。
释义：跟交情浅的朋友说过深的话题，是愚蠢的；生活贫困的人总是希望得到富贵者的施舍，是糊涂的；没有取得他人的信任就进献忠言，会被误解为批评。
局外人