31.Wisdom is more to be envied than riches.

　　知识可羡，胜于财富。

　　32.Wisdom is better than gold or silver.

　　知识胜过金银，

　　33.Wisdom in the mind is better than money in the hand.

　　胸中有知识，胜于手中有钱。

　　34.Wisdom is a good purchase though we pay dear for it.

　　为了求知识，代价虽高也值得。

　　35.Doubt is the key of knowledge.

　　怀疑是知识之钥。

　　36.If you want knowledge,you must toil¹ for it.

　　若要求知识，须从勤苦得。

　　37.A little knowledge is a dangerous thing.

　　浅学误人。

　　38.A handful of common sense is worth a bushel of learning.

　　少量的常识，当得大量的学问。

　　39.Knowledge advances by steps and not by leaps.

　　知识只能循序渐进，不能跃进。

　　40.Learn wisdom by the follies² of others.

　　从旁人的愚行中学到聪明。