Science is what we have learned about how to keep from fooling ourselves.

My weapon is literature

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

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

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.

What is now proved was once only imagined.

The only true wisdom is in knowing you know nothing.

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

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.

No man's knowledge here can go beyond his experience.

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

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.

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

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

Industrialize or perish.

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

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

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.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

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

In order to stave off covetouness, greed, and spite, citizens world over must be educated.