Necessity is the mother of invention.

It is beyond a doubt that all our knowledge begins with experience.

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

I cannot teach anybody anything. I can only make them think

It is what you read when you don't have to that determines what you will be when you can't help it.

I am a part of everything that I have read.

The real solution lies in a world in which charity will have become unnecessary.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

Study without desire spoils the memory, and it retains nothing that it takes in.

To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.

The progressive development of man is vitally dependent on invention.

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

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

Civilization is a race between disaster and education.

I have no special talents. I am only passionately curious.

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

There is nothing more awful, insulting, and depressing than banality.

Common sense is the collection of prejudices acquired by age eighteen.

Industrialize or perish.

There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.