Let us try to teach generosity and altruism, because we are born selfish.

He who never made a mistake, never made a discovery.

There is not such a cradle of democracy upon the earth as the Free Public Library, this republic of letters, where neither rank, office, nor wealth receives the slightest consideration.

I'm not a genius. I'm just a tremendous bundle of experience.

He who possesses most must be most afraid of loss.

An original idea. That can't be too hard. The library must be full of them.

Jests that give pains are not jests.

Deep in the human unconscious is a pervasive need for a logical universe that makes sense. But the real universe is always one step beyond logic.

If a dog will not come to you after having looked you in the face, you should go home and examine your conscience.

If the only prayer you said was thank you, that would be enough.

Experience without theory is blind, but theory without experience is mere intellectual play.

The day of individual happiness has passed

Courage is not simply one of the virtues, but the form of every virtue at the testing point.

Like religion, politics, and family planning, cereal is not a topic to be brought up in public. It's too controversial.

You are like my little dog; when people see you, they know I am nearby.

The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it.

Prayer does not change God, but it changes him who prays.

Common sense is the most widely shared commodity in the world, for every man is convinced that he is well supplied with it.

Being an intellectual creates a lot of questions and no answers.

Don't take the wrong side of an argument just because your opponent has taken the right side.

Until we're educating every kid in a fantastic way, until every inner city is cleaned up, there is no shortage of things to do.