How to Know a Flatterer from a Friend (34-35)

It is in the next place very improper for a man immediately to retort or recriminate upon his monitor; for this is the way to occasion heats and animosities betwixt them, and will speak him rather impatient of any reproof at all than desirous to recompensate the kindness of one with another. And therefore it is better to take his chiding patiently for the present; and if he chance afterwards to commit a fault worth your remarking upon, you have then an opportunity of repaying him in his own coin. For being reminded, without the least intimation of a former pique or dissatisfaction, that he himself did not use to overlook the slips of his friend, he will receive the remonstrance favorably at your hands, as being the return of kindness rather than of anger and resentment.

Moreover, as Thucydides[*] says that he is a wise man who will not venture to incur odium except for matters of the highest concernment, so, when we do undertake the ungrateful office of censor, it ought to be only upon weighty and important occasions. For he who is peevish and angry at everybody and upon every trivial fault, acting