Discourses on Livy

That prudent princes and republics should be content to have obtained a victory; for, commonly, when they are not, their victory turns to defeat.

The use of dishonouring language towards an enemy is mostly caused by an insolent humour, bred by victory or the false hope of it, whereby men are oftentimes led not only to speak, but also to act amiss. For such false hopes, when they gain an entry into men's minds, cause them to overrun their goal, and to miss opportunities for securing a certain good, on the chance of obtaining some thing better, but uncertain. And this, being a matter that deserves attention, because in deceiving themselves men often injure their country, I desire to illustrate it by particular instances, ancient and recent, since mere argument might not place it in so clear a light.