Without courage, wisdom bears no fruit.

We have no words for speaking of wisdom to the stupid. He who understands the wise is wise already.

To acquire knowledge, one must study but to acquire wisdom, one must observe.

Great wisdom is generous petty wisdom is contentious.

Children also have artistic ability, and there is wisdom in there having it! The more helpless they are, the more instructive are the examples they furnish us and they must be preserved free of corruption from an early age.