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

In mathematics you don't understand things. You just get used to them.

I think that kids have a greater capacity for processing things than we give them credit for.

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

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.

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

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

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

To educate a person in the mind but not in morals is to educate a menace to society.

A cynic is a man who knows the price of everything, and the value of nothing.

Liberty without Learning is always in peril and Learning without Liberty is always in vain.

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

The fullness of knowledge only comes through the awareness of ignorance.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

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

Science is not only a disciple of reason but, also, one of romance and passion.

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

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

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

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