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

Don't learn to do, but learn in doing.

Seek knowledge from the cradle to the grave.

The direction in which education starts a man will determine his future in life

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

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

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

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

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

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

Education is an ornament for the prosperous, a refuge for the unfortunate.

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

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

If there were no bad people, there would be no good lawyers.

The man who does not read good books has no advantage over the man who can't read them.

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

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

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

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

What is freedom of expression? Without the freedom to offend, it ceases to exist.

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