Thus, they tell us, Demaratus coming from Corinth into Macedonia when Philip and his queen and son were at odds, and being after a gracious reception asked by the king what good understanding there was among the Grecians, replied, as being an old friend and acquaintance of his, Aye, by all means, sir, it highly becomes your majesty to enquire about the concord betwixt the Athenians and Peloponnesians, when you suffer your own family to be the scene of so much discord and contention. And as pert was that of Diogenes, who, entering Philip’s camp as he was going to make war upon the Grecians, was seized upon and brought before the king, who not knowing him asked him if he was a spy. Why, yes truly, said he, I am a spy upon your folly and imprudence, who without any necessity upon you are come hither to expose your kingdoms and your life to the uncertain decision of the cast of a die. This may perhaps seem a little too biting and satirical. 31. Another seasonable opportunity of reproving your friend for his vices is when some third person has already mortified him upon the same account. For a courteous and obliging man will dexterously silence his accuser, and then take him privately to task himself, advising him—if for no other reason, yet to abate the insolence of his enemies—to manage himself more prudently for the future. For how could they open their mouths against you, what could they have to reproach you with, if you would but reform such and such vices which render you obnoxious to their censure? And by this means the offence that was given lies at his door who roughly upbraided him; whilst the advantage he reaps is attributed to the person who candidly advised him. But there are some who have got yet a genteeler way of chiding, and that is, by chastising others for faults which they know their friends really stand guilty of. As my master Ammonius, perceiving once at his afternoon lecture that some of his scholars had dined more plentifully than became the moderation of students, immediately commanded one of his freedmen to take his own son and whip him. For what? says he. The youngster, forsooth, must needs have vinegar sauce to his meat; and with that casting his eye upon us, he gave us to understand that we likewise were concerned in the reprehension.