Question IX. WHETHER THERE CAN BE NEW DISEASES, AND HOW CAUSED. PHILO, DIOGENIANUS, PLUTARCH. PHILO the physician stoutly affirmed that the elephantiasis was a disease but lately known; since none of the ancient physicians speak one word of it, though they oftentimes enlarge upon little, frivolous, and obscure trifles. And I, to confirm it, cited Athenodorus the philosopher, who in his first book of Epidemical Diseases says, that not only that disease, but also the hydrophobia or water-dread (occasioned by the biting of a mad dog), were first discovered in the time of Asclepiades. At this the whole company were amazed, thinking it very strange that such diseases should begin then, and yet as strange that they should not be taken notice of in so long a time; yet most of them leaned to this last opinion, as being most agreeable to man, not in the least daring to imagine that Nature affected novelties, or would in the body of man, as in a city, create new disturbances and tumults.