There have been eight persons of the name of Zeno. First the Eleatic; the second our present subject; the third a Rhodian who wrote a local history in one volume; the fourth a historian who wrote an epitome of the political history of Rome and Carthage; the fifth a pupil of Chrysippus, who left few writings but many disciples; the sixth a physician of the school of Herophilus, a competent practitioner, though a poor writer; the seventh a grammarian, who besides other writings has left behind him epigrams; the eighth a Sidonian by birth and an Epicurean philosopher, lucid both in thinking and in style.