Real knowledge is to know the extent of one's ignorance.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
A cynic is a man who knows the price of everything, and the value of nothing.
Seek knowledge from the cradle to the grave.
In mathematics you don't understand things. You just get used to them.
Men are born ignorant, not stupid. They are made stupid by education.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.
I cannot live without books.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
All stable processes we shall predict. All unstable processes we shall control.
Civilization is a race between disaster and education.
Intelligence plus character-that is the goal of true education.
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.
It is what you read when you don't have to that determines what you will be when you can't help it.
Knowing is not enough; we must apply. Willing is not enough; we must do.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
Knowing others is wisdom, knowing yourself is Enlightenment.
Imagination is more important than knowledge.
Any sufficiently advanced technology is indistinguishable from magic.