Philautia

Zwingli distinguished the origin of human sin with its Greek name, philautia. Philautia promotes the self over all others, both brother and father, neighbor and God. It is the wish for "things to be better for us than for others."

There was, however, an inclination in pre-Christian Greek philosophy to speak of philautia in a different way. In Plato's Laws we first encounter the saying, apparently traditional, that "every man is naturally his own friend." This idea was to provide Aristotle with a developed theory of friendship.