Where virtue is, sensibility is the ornament and becoming attire of virtue. On certain occasions it may almost be said to become virtue. But sensibility and all the amiable qualities may likewise become, and too often have become, the panders of vice and the instruments of seduction.
Virtue that wavers is not virtue, but vice revolted from itself, and after a while returning. The actions of just and pious men do not darken in their middle course.
A prince must be prudent enough to know how to escape the bad reputation of those vices that would lose the state for him, and must protect himself from those that will not lose it for him, if this is possible; but if he cannot, he need not concern himself unduly if he ignores these less serious vices.