I am indebted to my father for living, but to my teacher for living well.

Don't worry that children never listen to you; worry that they are always watching you.

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.

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

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

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

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

Knowing others is wisdom, knowing yourself is Enlightenment.

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

I like poems you can tack all over with a hammer and there are no hollow places.

It is better to know how to learn than to know.

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

A witty saying proves nothing.

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

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

Imagination is more important than knowledge.

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.

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

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

Real learning comes about when the competitive spirit has ceased.