In judging policies we should consider the results that have been achieved through them rather than the means by which they have been executed. - Niccolò Machiavelli

And let it here be noted that men are either to be kindly treated, or utterly crushed, since they can revenge lighter injuries, but not graver. Wherefore the injury we do to a man should be of a sort to leave no fear of reprisals.

If you only notice human proceedings, you may observe that all who attain great power and riches, make use of either force or fraud; and what they have acquired either by deceit or violence, in order to conceal the disgraceful methods of attainment, they endeavor to sanctify with the false title of honest gains. Those who either from imprudence or want of sagacity avoid doing so, are always overwhelmed with servitude and poverty; for faithful servants are always servants, and honest men are always poor; nor do any ever escape from servitude but the bold and faithless, or from poverty, but the rapacious and fraudulent. God and nature have thrown all human fortunes into the midst of mankind; and they are thus attainable rather by rapine than by industry, by wicked actions rather than by good. Hence it is that men feed upon each other, and those who cannot defend themselves must be worried.

Without an opportunity, their abilities would have been wasted, and without their abilities, the opportunity would have arisen in vain.