A prince who is not himself wise cannot be wisely advised. . . . Good advice depends on the shrewdness of the prince who seeks it, and not the shrewdness of the prince on good advice.
It makes him hated above all things, as I have said, to be rapacious, and to be a violator of the property and women of his subjects, from both of which he must abstain.
Therefore, a prudent ruler ought not to keep faith when by so doing it would be against his interest, and when the reasons which made him bind himself no longer exist. If men were all good, this precept would not be a good one; but as they are bad, and would not observe their faith with you, so you are not bound to keep faith with them.
In the same manner, having been reduced by disorder, and sunk to their utmost state of depression, unable to descend lower, they, of necessity, reascend; and thus from good they gradually decline to evil, and from evil again return to good. The reason is, that valor produces peace; peace, repose; repose, disorder; disorder, ruin; so from disorder order springs; from order virtue, and from this, glory and good fortune.
And it will always happen that he who is not your friend will request your neutrality and he who is your friend will ask you to declare yourself by taking up arms. And irresolute princes, in order to avoid present dangers, follow the neutral road most of the time, and most of the time they are ruined.
The Romans never allowed a trouble spot to remain simply to avoid going to war over it, because they knew that wars don't just go away, they are only postponed to someone else's advantage. Therefore, they made war with Philip and Antiochus in Greece, in order not to have to fight them in Italy... They never went by that saying which you constantly hear from the wiseacres of our day, that time heals all things. They trusted rather their own character and prudence- knowing perfectly well that time contains the seeds of all things, good as well as bad.
He who has annexed them, if he wishes to hold them, has only to bear in mind two considerations: the one, that the family of their former lord is extinguished; the other, that neither their laws nor their taxes are altered, so that in a very short time they will become entirely one body with the old principality.
Men are less hesitant about harming someone who makes himself loved than one who makes himself feared because love is held together by a chain of obligation which, since men are wretched creatures, is broken on every occasion in which their own interests are concerned; but fear is sustained by dread of punishment which will never abandon you.