Cicero's Three Books Of Offices; Or, Moral Duties: Also His Cato Major, an Essay on Old Age; Lælius, an Essay on Friendship; Paradoxes; Scipio's Dream; and Letter to Quintus on the Duties of a Magistrate. Literally Tr., with Notes, Designed to Exhibit a Comparative View of the Opinions of Cicero, and Those of Modern Moralists and Ethical Philosophers