Because there are three classes of intellects: one which comprehends by itself; another which appreciates what others comprehend; and a third which n… - Niccolò Machiavelli

I say that every prince must desire to be considered merciful and not cruel. He must, however, take care not to misuse this mercifulness. … A prince, therefore, must not mind incurring the charge of cruelty for the purpose of keeping his subjects united and confident; for, with a very few examples, he will be more merciful than those who, from excess of tenderness, allow disorders to arise, from whence spring murders and rapine; for these as a rule injure the whole community, while the executions carried out by the prince injure only one individual. And of all princes, it is impossible for a new prince to escape the name of cruel, new states being always full of dangers. … Nevertheless, he must be cautious in believing and acting, and must not inspire fear of his own accord, and must proceed in a temperate manner with prudence and humanity, so that too much confidence does not render him incautious, and too much diffidence does not render him intolerant.

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)

This return of Republics back to their principles also results from the simple virtue of one man, without depending on any law that excites him to any execution: none the less, they are of such influence and example that good men desire to imitate him, and the wicked are ashamed to lead a life contrary to those examples.