I was just now reading this passage where Plutarch says of himself, that Rusticus being present at a declamation of his at Rome, there received a packet from the emperor, and deferred to open it till all was done: for which, says he, all the company highly applauded the gravity of this person. ’Tis true, that being upon the subject of curiosity and of that eager passion for news, which makes us with so much indiscretion and impatience leave all to entertain a newcomer, and without any manner of respect or outcry, tear open on a sudden, in what company soever, the letters that are delivered to us, he had reason to applaud the gravity of Rusticus upon this occasion; and might moreover have added to it the commendation of his civility and courtesy, that would not interrupt the current of his declamation. But I doubt whether any one can commend his prudence; for receiving unexpected letters, and especially from an emperor, it might have fallen out that the deferring to read them might have been of great prejudice. The vice opposite to curiosity is negligence, to which I naturally incline, and wherein I have seen some men so extreme that one might have found letters sent them three or four days before, still sealed up in their pockets.
I never open any letters directed to another; not only those intrusted with me, but even such as fortune has guided to my hand; and am angry with myself if my eyes unawares steal any contents of letters of importance he is reading when I stand near a great man. Never was man less inquisitive or less prying into other men’s affairs than I.