Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.

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

Education is an ornament for the prosperous, a refuge for the unfortunate.

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

Evil being the root of mystery, pain is the root of knowledge.

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.

The progressive development of man is vitally dependent on invention.

A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

If I have seen further it is by standing on the shoulders of Giants.

Education is the kindling of a flame, not the filling of a vessel.

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

Investigate, educate and organize.

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

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

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

The deepest sin against the human mind is to believe things without evidence.

I decided to teach because I think that any person who studies philosophy has to be involved actively.

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.

When you know better you do better.

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