Those who fail to learn the lessons of history are doomed to repeat them.

Many much-learned men have no intelligence.

As we acquire more knowledge, things do not become more comprehensible but more mysterious.

I cannot teach anybody anything. I can only make them think

Science is what we have learned about how to keep from fooling ourselves.

A witty saying proves nothing.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

The progressive development of man is vitally dependent on invention.

I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

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

My weapon is literature

Investigate, educate and organize.

Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.

Civilization is a race between disaster and education.

He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.

The deepest sin against the human mind is to believe things without evidence.

If there were no bad people, there would be no good lawyers.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

Knowledge, Action, Devotion are complementary to each other.

Courage, conviction and confidence.