Then we must enlarge our borders; for the original healthy State is no longer sufficient. Now will the city have to fill and swell with a multitude of callings which are not required by any natural want; such as the whole tribe of hunters and actors, of whom one large class have to do with forms and colours; another will be the votaries of music--poets and their attendant train of rhapsodists, players, dancers, contractors; also makers of divers kinds of articles, *373C* including women's dresses. And we shall want more servants. Will not tutors be also in request, and nurses wet and dry, tirewomen and barbers, as well as confectioners and cooks; and swineherds, too, who were not needed and therefore had no place in the former edition of our State, but are needed now? They must not be forgotten: and there will be animals of many other kinds, if people eat them. Certainly. *373D* And living in this way we shall have much greater need of physicians than before? Much greater. And the country which was enough to support the original inhabitants will be too small now, and not enough? Quite true. [Sidenote: The territory of our State must be enlarged; and hence will arise war between us and our neighbours.] Then a slice of our neighbours' land will be wanted by us for pasture and tillage, and they will want a slice of ours, if, like ourselves, they exceed the limit of necessity, and give themselves up to the unlimited accumulation of wealth? *373E* That, Socrates, will be inevitable. And so we shall go to war, Glaucon. Shall we not? Most certainly, he replied. {55} Then without determining as yet whether war does good or harm, thus much we may affirm, that now we have discovered war to be derived from causes which are also the causes of almost all the evils in States, private as well as public. Undoubtedly. And our State must once more enlarge; and this time the enlargement will be nothing short of a whole army, which *374A* will have to go out and fight with the invaders for all that we have, as well as for the things and persons whom we were describing above. Why? he said; are they not capable of defending themselves? [Sidenote: War is an art, and as no art can be pursued with success unless a man's whole attention is devoted to it, a soldier cannot be allowed to exercise any calling but his own.] No, I said; not if we were right in the principle which was acknowledged by all of us when we were framing the State: the principle, as you will remember, was that one man cannot practise many arts with success. Very true, he said. *374B* But is not war an art? Certainly. And an art requiring as much attention as shoemaking? Quite true. [Sidenote: The warrior's art requires a long apprenticeship and many natural gifts.]