„Every being ought to do that which is according to its constitution; and all other things have been constituted for the sake of the superior, but the rational for the sake of one another.“

— Marcus Aurelius
„Men exist for the sake of one another.“
— Marcus Aurelius
„Think on this doctrine,—that reasoning beings were created for one another's sake; that to be patient is a branch of justice, and that men sin without intending it.“
— Marcus Aurelius
„In the case of all things which have a certain constitution, whatever harm“
— Marcus Aurelius
„Do not seek pleasure for its own sake.“
— Miyamoto Musashi