Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.

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

To every action there is always an equal and opposite or contrary, reaction

Industrialize or perish.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

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.

Any sufficiently advanced technology is indistinguishable from magic.

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

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

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

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

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

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

The schools ain't what they used to be and never was.

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

Books are as useful to a stupid person as a mirror is useful to a blind person.

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.

Better know nothing than half-know many things.

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