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

What sculpture is to a block of marble, education is to a human soul.

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

I have no special talents. I am only passionately curious.

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

Most people have never learned that one of the main aims in life is to enjoy it.

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.

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.

The whole of science is nothing more than a refinement of everyday thinking.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.

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

The only true wisdom is in knowing you know nothing.

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

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

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 because I don't care doesn't mean I don't understand.

My weapon is literature

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

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

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.