Although the Romans had but little sympathy with science or philosophy, being essentially political and warlike in their turn of mind, yet when they had conquered the world, and had turned their attention to arts, medicine received a good share of their attention. The first physicians in Rome were Greek slaves. Of these was Asclepiades, who enjoyed the friendship of Cicero. It is from him that the popular medical theories as to the "pores" have descended. He was the inventor of the shower-bath. Celsus wrote a work on medicine which takes almost equal rank with the Hippocratic writings. Medical science at Rome culminated in Galen, as it did at Athens in Hippocrates. Galen was patronized by Marcus Aurelius, and availed himself of all the knowledge of preceding naturalists and physicians. He was born at Pergamos about the year 130 A.D., where he learned, under able masters, anatomy, pathology, and therapeutics. He finished his studies at Alexandria, and came to Rome at the invitation of the Emperor. Like his imperial patron, Galen was one of the brightest ornaments of the heathen world, and one of the most learned and accomplished men of any age. He left five hundred treatises, most of them relating to some branch of medical science, which give him the name of being one of the most voluminous of authors. His celebrity is founded chiefly on his anatomical and physiological works. He was familiar with practical anatomy, deriving his knowledge from dissection. His observations about health are practical and useful; he lays great stress on gymnastic exercises, and recommends the pleasures of the chase, the cold bath in hot weather, hot baths for old people, the use of wine, and three meals a day. The great principles of his practice were that disease is to be overcome by that which is contrary to the disease itself,--hence the name Allopathy, invented by the founder of Homoeopathy to designate the fundamental principle of the general practice,--and that nature is to be preserved by that which has relation with nature. His "Commentaries on Hippocrates" served as a treasure of medical criticism, from which succeeding annotators borrowed. No one ever set before the medical profession a higher standard than Galen advanced, and few have more nearly approached it. He did not attach himself to any particular school, but studied the doctrines of each. The works of Galen constituted the last production of ancient Roman medicine, and from his day the decline in medical science was rapid, until it was revived among the Arabs.