To be ruled by a superior is not contrary however to human liberty, dignity and equality. Only the despot offends thus . . . even in the state of innocence there would have been political subjection, there would have been a difference of sexes, faculties and power; therefore an order of precedence and subjection. Among the angels there is a hierarchy of order with precedence and succession; why not among men? Therefore it is not contrary to liberty, nor humiliating to the dignity of man to be ruled by his legitimate superiors. . . . There is a difference between political subjection and servile subjection.
-St. Robert Bellarmine, De Laicis