Galen of Pergamum is principally famous for his works on anatomy, medicine and moral philosophy. He is also noted for his acerbic temperament, his affirmations of his own brilliance and his denigration of the education, morals and lifestyle of his medical opponents and of anyone who viewed differently the things that he held dear. On his arrival in Rome he used a variety of techniques reminiscent of those used by the sophists in order to establish his place amongst the social and intellectual elite both as a physician and as a philosopher. At this and later points in his career his rhetoric emphasised the quality of his Greek education which included a thorough grounding in mathematics. He also appealed to his philosophic lifestyle and to his social connections in Rome in order to differentiate himself from the general run of doctors and to promote his own agenda. In this dissertation I examine his writings with the object of testing the validity of Galen’s claims in these areas and, in the process, to come to a deeper understanding the social and intellectual environments that formed him and with which he interacted. Special attention is given to his literary and rhetorical education and his knowledge of the exact sciences. …