Necessity is the mother of invention.

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.

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

The ability to observe without evaluating is the highest form of intelligence.

I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.

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

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

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

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

I cannot teach anybody anything. I can only make them think

An investment in knowledge pays the best interest.

Any sufficiently advanced technology is indistinguishable from magic.

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

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

Reading is to the mind what exercise is to the body.

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

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

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

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.

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

The task of a writer is not to solve the problem but to state the problem correctly.