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.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

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

Science is a way of thinking much more than it is a body of knowledge.

I am so clever that sometimes I don't understand a single word of what I am saying.

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

A child educated only at school is an uneducated child.

Courage, conviction and confidence.

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.

Education is the kindling of a flame, not the filling of a vessel.

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

Don't worry that children never listen to you; worry that they are always watching you.

My weapon is literature

Opinion is the medium between knowledge and ignorance.

Imagination is more important than knowledge.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

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

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

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