Aristotle (c. 384-322 BCE)
“It is clear then that those constitutions which aim at the common good are right, as being in accord with absolute justice; while those which aim only at the good of the rulers are wrong. They are all deviations from the right constitutions. They are like the rule of master over slave, whereas the state is an association of free men.”
- From Aristotle’s Politics (Bekker page 1279a), translated by T. A. Sinclair and revised by T. J. Saunders (Penguin Classics, 1962, 1981, 1992).