I am a part of everything that I have read.

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

I cannot live without books.

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

A cynic is a man who knows the price of everything, and the value of nothing.

Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.

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.

Necessity is the mother of invention.

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

No power and no treasure can outweigh the extension of our knowledge.

Courage, conviction and confidence.

The fullness of knowledge only comes through the awareness of ignorance.

Educate the children and it won't be necessary to punish the men.

You can never be overdressed or overeducated.

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 most important part of teaching is to teach what it is to know.

If the facts don't fit the theory, change the facts.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

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

The only good is knowledge and the only evil is ignorance.