It is safer to be feared than loved - Niccolò Machiavelli

For this can be said of men in general: that they are ungrateful, fickle, hypocrites and dissemblers, avoiders of dangers, greedy for gain; and while you benefit them, they are entirely yours, offering you their blood, their goods, their life, their children,...when need is far away, but when you actually become needy, they turn away. (translated by Wayne A. Rebhorn)

When a newly acquired State has been accustomed, as I have said, to live under its own laws and in freedom, there are three methods whereby it may be held. The first is to destroy it; the second, to go and reside there in person; the third, to suffer it to live on under its own laws, subjecting it to a tribute, and entrusting its government to a few of the inhabitants who will keep the rest your friends

Though fraud in all other actions be odious, yet in matters of war it is laudable and glorious, and he who overcomes his enemies by stratagem is as much to be praised as he who overcomes them by force.