I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.

The most savage controversies are those about matters as to which there is no good evidence either way.

If the facts don't fit the theory, change the facts.

The first idea the child must acquire is that of the difference between good and evil.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

When you know better you do better.

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

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

Courage, conviction and confidence.

Real learning comes about when the competitive spirit has ceased.

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

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

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

Don't learn to do, but learn in doing.

Education is the kindling of a flame, not the filling of a vessel.

Reading without reflecting is like eating without digesting.

The books that the world calls immoral are books that show the world its own shame.

A thought is an idea in transit.

Reading is to the mind what exercise is to the body.

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

Educate the children and it won't be necessary to punish the men.