The ability to observe without evaluating is the highest form of intelligence.

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.

Show me a family of readers, and I will show you the people who move the world.

Many much-learned men have no intelligence.

Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.

I decided to teach because I think that any person who studies philosophy has to be involved actively.

Evil being the root of mystery, pain is the root of knowledge.

A thought is an idea in transit.

The man who is fond of books is usually a man of lofty thought, and elevated opinions.

One test of the correctness of educational procedure is the happiness of the child.

Any sufficiently advanced technology is indistinguishable from magic.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

Real learning comes about when the competitive spirit has ceased.

Know what you are talking about.

To every action there is always an equal and opposite or contrary, reaction

Imagination is more important than knowledge.

Make it a rule never to give a child a book you would not read yourself.

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

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

The only true wisdom is in knowing you know nothing.

Learning never exhausts the mind.