Human history is the sad result of each one looking out for himself.

I have often noticed that when chickens quit quarrelling over their food, they often find that there is enough for all of them. I wonder if it might not be the same with the human race.

The greatest productive force is human selfishness.

If you live only for yourself, you are always in immediate danger of being bored to death with the repetition of your own views and interests.

Every nation makes decisions based on self-interest and defends them on the basis of morality.

The small share of happiness attainable by man exists only insofar as he is able to cease to think of himself.

Selfishness is not living as one wishes to live, it is asking others to live as one wishes to live.

The ruin of the human heart is self-interest, which the American merchant calls self-service. We have become a self-service populace, and all our specious comforts - the automatic elevator, the escalator, the cafeteria - are depriving us of volition and moral and physical energy.

If I am not for myself, who will be?

If we were not all so excessively interested in ourselves, life would be so uninteresting that none of us would be able to endure it.