Of Diognetus I had the lesson not to busy myself about vain things; not to credit the great professions of such as pretend to work wonders, or of sorcerers about their charms, and their expelling of Demons and the like; not to keep quails (for fighting or divination), nor to run after such things; to suffer freedom of speech in others, and to apply myself heartily to philosophy. Him also I must thank for my hearing first Bacchius, then Tandasis and Marcianus; that I wrote dialogues in my youth, and took a liking to the philosopher's pallet and skins, and to the other things which, by the Grecian discipline, belong to that profession.