The first principle is that you must not fool yourself and you are the easiest person to fool.

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

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

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

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

Courage, conviction and confidence.

Better know nothing than half-know many things.

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

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

Intelligence plus character-that is the goal of true education.

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

Educate the children and it won't be necessary to punish the men.

To every action there is always an equal and opposite or contrary, reaction

Just because I don't care doesn't mean I don't understand.

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

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

I do not know how to teach philosophy without becoming a disturber of the peace.

The first idea the child must acquire is that of the difference between good and evil.

To educate a person in the mind but not in morals is to educate a menace to society.

What sculpture is to a block of marble, education is to a human soul.

I decided to teach because I think that any person who studies philosophy has to be involved actively.