A little knowledge is a dangerous thing. So is a lot.

Courage, conviction and confidence.

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

Any sufficiently advanced technology is indistinguishable from magic.

Those who fail to learn the lessons of history are doomed to repeat them.

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

Better know nothing than half-know many things.

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.

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

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

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

The books that the world calls immoral are books that show the world its own shame.

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.

Free the child's potential, and you will transform him into the world.

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 had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

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

Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.

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

Seek knowledge from the cradle to the grave.

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