A little knowledge is a dangerous thing.浅学误人。

 

A handful of common sense is worth a bushel of learning.少量的常识，当得大量的学问。

 

Knowledge advances by steps and not by leaps.知识只能循序渐进，不能跃进。

 

Learn wisdom by the follies of others.从旁人的愚行中学到聪明。

 

It is good to learn at another man’s cost.前车可鉴。