The Prince by Niccolo Machiavelli Chapter 22 Page 2

intelligence, one which understands by itself, a second which understands what is shown it by others, and a third which understands neither by itself nor on the showing of others, the first of which is most excellent, the second good, but the third worthless, we must needs admit that if Pandolfo was not in the first of these degrees, he was in the second; for when one has the judgment to discern the good from the bad in what another says or does, though he be devoid of invention, he can recognize the merits and demerits of his servant, and will commend the former while he corrects the latter. The servant cannot hope to deceive such a master, and will continue good.

As to how a Prince is to know his Minister, this unerring rule may be laid down. When you see a Minister thinking more of himself than of you, and in all his