on ruin
you who set you on work.

If treachery can be in any case excusable, it must be only so when it is
practised to chastise and betray treachery. There are examples enough of
treacheries, not only rejected, but chastised and punished by those in
favour of whom they were undertaken. Who is ignorant of Fabricius
sentence against the physician of Pyrrhus?

But this we also find recorded, that some persons have commanded a thing,
who afterward have severely avenged the execution of it upon him they had
employed, rejecting the reputation of so unbridled an authority, and
disowning so abandoned and base a servitude and obedience. Jaropelk,
Duke of Russia, tampered with a gentleman of Hungary to betray Boleslaus,
king of Poland, either by killing him, or by giving the Russians
opportunity to do him some notable mischief. This worthy went ably to
work: he was more assiduous than before in the service of that king, so
that he obtained the honour to be of his council, and one of the chiefest
in his trust. With these advantages, and taking an opportune occasion of
his master's absence, he betrayed Vislicza, a great and rich city, to the
Russians, which was entirely sacked and burned, and not only all the
inhabitants of both sexes, young and old, put to the sword, but moreover
a great number of neighbouring gentry, whom he had drawn thither to that
end. Jaropelk, his revenge being thus satisfied and his anger appeased,
which was not, indeed, without pretence (for Boleslaus had highly
offended him, and after the same manner), and sated with the fruit of
this treachery, coming to consider the fulness of it, with a sound
judgment and clear from passion, looked upon what had been done with so
much horror and remorse that he caused the eyes to be bored out and the
tongue and shameful parts to be cut off of him who had performed it.

Antigonus persuaded the Argyraspides to betray Eumenes, their general,
his adversary, into his hands; but after he had caused him, so delivered,
to be slain, he would himself be the commissioner of the divine justice
for the punishment of so detestable a crime, and committed them into the
hands of the governor of the province, with express command, by whatever
means, to destroy and bring them all to an evil end, so that of that
great number of men, not so much as one ever returned again into
Macedonia: the better he had been served, the more wickedly he judged it
to be, and meriting greater puni