No power and no treasure can outweigh the extension of our knowledge.

The great difficulty in education is to get experience out of ideas.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

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

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

No man's knowledge here can go beyond his experience.

If you can't explain it simply, you don't understand it well enough.

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.

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

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

Education is the most powerful weapon which you can use to change the world.

Education is a system of imposed ignorance.

Civilization is a race between disaster and education.

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

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

Real knowledge is to know the extent of one's ignorance.

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

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

There is nothing more awful, insulting, and depressing than banality.

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 first principle is that you must not fool yourself and you are the easiest person to fool.