the Venetians is to be excused, as having been the means of allowing the French king to set foot in Italy, this other partition deserves blame, not having the excuse of necessity. Louis had thus made these five mistakes: he had crushed the smaller Powers, increased the power in Italy of one ruler, brought into the land a very powerful foreigner, and he had not come to live there himself, nor had he established any colonies. Still these mistakes might, if he had lived, not have injured him, had he not made the sixth, that of taking the state from the Venetians; for, if he had not strengthened the Church and brought the Spaniards into Italy, it would have been right and necessary to humble them; having once taken those measures, he ought never to have consented to their ruin; because, had the Venetians been strong, it would have kept the others from making attempts on Lombardy, partly because the Venetians would not have consented to any measures by which they did not get it for themselves, and partly because the others would not have wanted to take it from France to give it to Venice, and would not have had the courage to attack both. If any one urges that King Louis yielded the Romagna to Alexander and the kingdom to Spain in order to avoid war, I reply, with the reasons already given, that one ought never to allow a disorder to take place in order to avoid war, for war is not thereby avoided, but only deferred to your disadvantage. And if others allege the promise given by the king to the pope to undertake that enterprise for him, in return for the dissolution of his marriage and for the cardinalship of Rohan, I reply with what I shall say later on about the faith of princes and how it is to be observed. Thus King Louis lost Lombardy through not observing any of those conditions which have been observed by others who have taken provinces and wished to retain them. Nor is this any miracle, but very reasonable and natural. I spoke of this matter with Cardinal Rohan at Nantes when Valentine, as Cesare Borgia, son of Pope Alexander, was commonly called, was occupying the Romagna, for on Cardinal Rohan saying to me that the Italians did not understand war, I replied that the French did not understand politics, for if they did they would never allow the Church to become so great. And experience shows us that the greatness in Italy of the Church and also of Spain have been caused by France, and her ruin has proceeded from them. From which may be drawn a general rule, which never or very rarely fails, that whoever is the cause of another becoming powerful, is ruined himself; for that power is produced by him either through craft or force; and both of these are suspected by the one that has become powerful. CHAPTER IV WHY THE KINGDOM OF DARIUS, OCCUPIED BY ALEXANDER, DID NOT REBEL AGAINST THE SUCCESSORS OF THE LATTER AFTER HIS DEATH.