To know is to know that you know nothing. That is the meaning of true knowledge.

Knowledge is the life of the mind.

A single conversation across the table with a wise man is better than ten years' of mere study of books.

You teach best what you most need to learn.

Human behavior flows from three main sources: desire, emotion, and knowledge.

The brighter you are, the more you have to learn.

Learning never exhausts the mind.

You discover yourself through the research of your work.

In youth we learn; in age we understand.

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.