Knowing is not enough; we must apply. Willing is not enough; we must do.

Dare to think for yourself.

The white man is very clever. He came quietly and peaceably with his religion. We were amused at his foolishness and allowed him to stay. Now he has won our brothers, and our clan can no longer act like one. He has put a knife on the things that held us together and we have fallen apart.

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

The knowledge of all things is possible

Opinion is the medium between knowledge and ignorance.

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

Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.

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

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

A thought is an idea in transit.

All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.

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

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.

It is possible to fly without motors, but not without knowledge and skill.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

The man who does not read good books has no advantage over the man who can't read them.

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

Many much-learned men have no intelligence.

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

Common sense is the collection of prejudices acquired by age eighteen.