We find in the orations of Demosthenes, a perpetual reference to this state of manners. We find him exhorting the Athenians not only to declare war, but to arm themselves for the execution of their own military plans. We find that there was an order of military men, who easily passed from the service of one state to that of another; and who, when they were neglected from home, turned away to enterprises on their own account. There were not, perhaps, better warriors in any former age; but those warriors were not attached to any state; and the settled inhabitants of every city thought themselves disqualified for military service. The discipline of armies was perhaps improved; but the vigour of nations was gone to decay. When Philip, or Alexander, defeated the Grecian armies, which were chiefly composed of soldiers of fortune, they found an easy conquest with the other inhabitants; and when the latter, afterwards supported by those soldiers, invaded the Persian empire, he seems to have left little martial spirit behind him; and by removing the military men, to have taken precaution enough, in his absence, to secure his dominion over this mutinous and refractory people. The subdivision of arts and professions, in, certain examples, tends to improve the practice of them, and to promote their ends. By having separated the arts of the clothier and the tanner, we are the better supplied with shoes and with cloth. But to separate the arts which form the citizen and the statesman, the arts of policy and war, is an attempt to dismember the human character, and to destroy those very arts we mean to improve. By this separation, we in effect deprive a free people of what is necessary to their safety; or we prepare a defence against invasions from abroad, which gives a prospect of usurpation, and threatens the establishment of military government at home.