The Prince by Niccolo Machiavelli Chapter 18 Page 2

covertly taught by the ancient writers, who relate how Achilles and many others of these old Princes were given over to be brought up and trained by Chiron the Centaur; since the only meaning of their having for instructor one who was half man and half beast is, that it is necessary for a Prince to know how to use both natures, and that the one without the other has no stability.

But since a Prince should know how to use the beast’s nature wisely, he ought of beasts to choose both the lion and the fox; for the lion cannot guard himself from the toils, nor the fox from wolves. He must therefore be a fox to discern toils, and a lion to drive off wolves.

To rely wholly on the lion is unwise; and for this reason a prudent Prince neither can nor ought to keep his word when to keep it is