As the observance of divine institutions is the cause of the greatness of republics, so the disregard of them produces their ruin; for where the fear of God is wanting, there the country will come to ruin, unless it be sustained the fear of the prince, which temporarily supply the want of religion.
Men never do good unless necessity drives them to it; but when they are free to choose and can do just as they please, confusion and disorder become rampant.
Many have dreamed up republics and principalities that have never in truth been known to exist; the gulf between how one should live and how one does live is so wide that a man who neglects what is actually done for what should be done learns the way to self-destruction rather than self-preservation.
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.
Conquered states that have been accustomed to liberty and the government of their own laws can be held by the conqueror in three different ways. The first is to ruin them; the second, for the conqueror to go and reside there in person; and the third is to allow them to continue to live under their own laws, subject to a regular tribute, and to create in them a government of a few, who will keep the country friendly to the conqueror
Well used are those cruelties (if it is permitted to speak well of evil) that are carried out in a single stroke, done out of necessity to protect oneself, and are not continued but are instead converted into the greatest possible benefits for the subjects. Badly used are those cruelties which. although being few at the outset, grow with the passing time instead of disappearing. Those who follow the first method can remedy their condition with God and with men; the others cannot possibly survive.
I desire to go to Hell and not to Heaven. In the former I shall enjoy the company of popes, kings and princes, while in the latter are only beggars, monks and apostles
All courses of action are risky, so prudence is not in avoiding danger (it's impossible), but calculating risk and acting decisively. Make mistakes of ambition and not mistakes of sloth. Develop the strength to do bold things, not the strength to suffer.
When you disarm your subjects, however, you offend them by showing that either from cowardliness or lack of faith, you distrust them; and either conclusion will induce them to hate you.
And if, to be sure, sometimes you need to conceal a fact with words, do it in such a way that it does not become known, or, if it does become known, that you have a ready and quick defense.