Where there is shouting, there is no true knowledge.

One whose knowledge is confined to books and whose wealth is in the possession of others, can use neither his knowledge nor wealth when the need for them arises.

The more informed you are, the less arrogant and aggressive you are.

The more I see the less I know for sure.

A smart man isn't necessarily one who knows all the answers, but knows where to find them.

What is important is not the quantity of your knowledge but its quality. You can know many things without knowing the most important.