Etienne de la Boétie, The Politics of Obedience: The Discourse of Voluntary Servitude page 19

They didn't even neglect, these Roman emperors, to assume generally the title of Tribune of the People, partly because this office was held sacred and inviolable and also because it had been founded for the defense and protection of the people and enjoyed the favor of the state. By this means they made sure that the populace would trust them completely, as if they merely used the title and did not abuse it. Today there are some who do not behave very differently; they never undertake an unjust policy, even one of some importance, without prefacing it with some pretty speech concerning public welfare and common good.