All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

What is now proved was once only imagined.

The secret of life is not enjoyment but education through experience.

Real knowledge is to know the extent of one's ignorance.

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

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.

Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.

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

When you know better you do better.

Many much-learned men have no intelligence.

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

A child educated only at school is an uneducated child.

Know what you are talking about.

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

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.

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.

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

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.

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

I am indebted to my father for living, but to my teacher for living well.

I think that kids have a greater capacity for processing things than we give them credit for.