Therefore it is necessary for a prince to understand how to avail himself of the beast and the man.

This has been figuratively taught to princes by ancient writers, who describe how Achilles and many other princes of old were given to the Centaur Chiron to nurse, who brought them up in his discipline; 
     which means solely that, as they had for a teacher one who was half beast and half man, so it is necessary
     for a prince to know how to make use of both natures, and that one without the other is not durable. 

High