"When Machiavelli advises the Prince to carry out the Machiavellian scheme of action, he invests those actions with no sort of morality or beauty. For him morality remains what it is for everyone else, and does not cease to remain so because he observes (not without melancholy) that it is incompatible with politics. ... For him evil, even if it aids politics, still remains evil. The modern realists are the moralists of realism. For them, the act which makes the State strong is invested with a moral character by the fact that it does so, and this whatever the act may be. The evil which serves politics ceases to be evil and becomes good."

"We are much beholden to Machiavelli and others, that write what men do, and not what they ought to do. For it is not possible to join serpentine wisdom with the columbine innocency, except men know exactly all the conditions of the serpent; his baseness and going upon his belly, his volubility and lubricity, his envy and sting, and the rest; that is, all forms and natures of evil. For without this, virtue lieth open and unfenced. Nay, an honest man can do no good upon those that are wicked, to reclaim them, without the help of the knowledge of evil."

"He is the earliest conscious and articulate exponent of certain living forces in the present world. Religion, progressive enlightenment, the perpetual vigilance of public opinion, have not reduced his empire, or disproved the justice of his conception of mankind. He obtains a new lease of life from causes that are still prevailing, and from doctrines that are apparent in politics, philosophy, and science. Without sparing censure, or employing for comparison the grosser symptoms of the age, we find him near our common level, and perceive that he is not a vanishing type, but a constant and contemporary influence. Where it is impossible to praise, to defend, or to excuse, the burden of blame may yet be lightened by adjustment and distribution, and he is more rationally intelligible when illustrated by lights falling not only from the century he wrote in, but from our own, which has seen the course of its history twenty-five times diverted by actual or attempted crime."