The clan is nothing more than a larger family, with its patriarchal chief as the natural head, and the union of several clans by intermarriage and voluntary connection constitutes the tribe.
More Charles Eastman quotes :
That is, we believed, the supreme duty of the parent, who only was permitted to claim in some degree the priestly office and function, since it is his creative and protecting power which alone approaches the solemn function of Deity.Charles Eastman
Friendship is held to be the severest test of character. It is easy, we think, to be loyal to a family and clan, whose blood is in your own veins.Charles Alexander Eastman