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

What we know is a drop, what we don't know is an ocean.

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.

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

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

Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.

It is possible to fly without motors, but not without knowledge and skill.

Knowing others is wisdom, knowing yourself is Enlightenment.

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.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

If one cannot enjoy reading a book over and over again, there is no use in reading it at all.

You can never be overdressed or overeducated.

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

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

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

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

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

Liberty without Learning is always in peril and Learning without Liberty is always in vain.

A thought is an idea in transit.

Knowledge becomes evil if the aim be not virtuous.