In mathematics you don't understand things. You just get used to them.

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.

Know what you are talking about.

As we acquire more knowledge, things do not become more comprehensible but more mysterious.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

Reading without reflecting is like eating without digesting.

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

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

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

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

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.

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

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

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

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

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

We could never learn to be brave and patient, if there were only joy in the world

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

Study without desire spoils the memory, and it retains nothing that it takes in.

If you want the present to be different from the past, study the past.