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

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.

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

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

Investigate, educate and organize.

I learned very early the difference between knowing the name of something and knowing something.

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

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

A thought is an idea in transit.

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

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

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

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

Industrialize or perish.

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.

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

Dare to think for yourself.

The knowledge of all things is possible

Better know nothing than half-know many things.

Real learning comes about when the competitive spirit has ceased.