There are records in his writings of many journeys, and busy with his practice in dissections and experiments he passed a long and energetic life, dying, according to most authorities, in the year 200 A.D.
A sketch of the state of medicine in Rome is given by Celsus in the first of his eight books, and he mentions the names of many of the leading practitioners, particularly Asclepiades, the Bithynian, a man of great ability, and a follower of the Alexandrians, who regarded all disease as due to a disturbed movement of the atoms.

Diet, exercise, massage and bathing were his great remedies, and his motto--tuto, cito et jucunde--has been the emulation of all physicians.

How important a role he and his successors played until the time of Galen may be gathered from the learned lectures of Sir Clifford Allbutt( 32) on "Greek Medicine in Rome" and from Meyer-Steineg's "Theodorus Priscianus und die romische Medizin."(33) From certain lay writers we learn that it was the custom for popular physicians to be followed on their rounds by crowds of students.

Martial's epigram (V, ix) is often referred to: Languebam: sed tu comitatus protinus ad me Venisti centum, Symmache, discipulis.
Centum me tegigere manus Aquilone gelatae Non habui febrem, Symmache, nunc habeo.
(32) Allbutt: British Medical Journal, London, 1909, ii, 1449; 1515; 1598.
(33) Fischer, Jena, 1909.
And in the "Apollonius of Tyana" by Philostratus, when Apollonius wishes to prove an alibi, he calls to witness the physicians of his sick friend, Seleucus and Straloctes, who were accompanied by their clinical class to the number of about thirty students.( 34) But for a first-hand sketch of the condition of the profession we must go to Pliny, whose account in the twenty-ninth book of the "Natural History" is one of the most interesting and amusing chapters in that delightful work.

He quotes Cato's tirade against Greek physicians,--corrupters of the race, whom he would have banished from the city,--then he sketches the career of some of the more famous of the physicians under the Empire, some of whom must have had incomes never approached at any other period in the history of medicine.