4
That it is not commonly considered an art is not unnatural, for it is inappropriate to call anyone an artist in a craft in which none are laymen, but all possess knowledge through being compelled to use it. Nevertheless the discovery was a great one, implying much investigation and art. At any rate even at the present day those who study gymnastics and athletic exercises are constantly making some fresh discovery by investigating on the same method what food and what drink are best assimilated and make a man grow stronger.