Friendship ["philia"] seems to prevail man and woman according to nature ["kata phusin"; for people are by nature ["tēi phusei"] pairing ["sunduastikon"] more than political ["politikon" = of the "polis"], in as much as the household ["oikos"] is prior ["proteron" = earlier] and more necessary than the "polis" and making children is more common ["koinoteron"] with the animals. In the other animals, community ["koinōnia"] goes no further than this, but people live together ["sumoikousin"] not only for the sake of making children, but also for the things for life; for from the start the functions ["erga"] are divided, and are different man and woman. Thus they supply each other, putting their own into the common ["eis to koinon". It is for these that both utility ["chrēsimon" and pleasure ["hēdu"] seem to be found in this kind of friendship. (Nicomachean Ethics, VIII.12.1162a. Rough literal translation with Greek terms shown in square brackets.)