I wish also to recall to memory an instance from the Old Testament applicable to this subject. David offered himself to Saul to fight with Goliath, the Philistine champion, and, to give him courage, Saul armed him with his own weapons; which David rejected as soon as he had them on his back, saying he could make no use of them, and that he wished to meet the enemy with his sling and his knife. In conclusion, the arms of others either fall from your back, or they weigh you down, or they bind you fast.
Charles the Seventh, the father of King Louis the Eleventh, having by good fortune and valour liberated France from the English, recognized the necessity of being armed with forces of his own, and he established in his kingdom ordinances concerning men-at-arms and infantry. Afterwards his son, King Louis, abolished the infantry and began to enlist the Switzers, which mistake, followed by others, is, as is now seen, a source of peril to that kingdom; because, having raised the reputation of the Switzers, he has entirely diminished the value of his own arms, for he has destroyed the infantry altogether; and his men-at-arms he has subordinated to others, for, being as they are so accustomed to fight along with Switzers, it does not appear that they can now conquer without them. Hence it arises that the French cannot stand against the Switzers, and without the Switzers they do not come off well against others. The armies of the French have thus become mixed, partly mercenary and partly national, both of which arms together are much better than mercenaries alone or auxiliaries alone, but much inferior to one’s own forces. And this example proves it, for the kingdom of France would be unconquerable if the ordinance of Charles had been enlarged or maintained.
But the scanty wisdom of man, on entering into an affair which looks well at first, cannot discern the poison that is hidden in it, as I have said above of hectic fevers. Therefore, if he who rules a principality cannot recognize evils until they are upon him, he is not truly wise; and this