On Duties 1.136 — Cicero (on the Stoics)

Cicero (on the Stoics), On Duties 1.136

But as we have a most excellent rule for every phase of life, to avoid exhibitions of passion, that is, mental excitement that is excessive and uncontrolled by reason; so our conversation ought to be free from such emotions: let there be no exhibition of anger or inordinate desire, of indolence or indifference, or anything of the kind. We must also take the greatest care to show courtesy and consideration toward those with whom we converse. It may sometimes happen that there is need of administering reproof. On such occasions we should, perhaps, use a more emphatic tone of voice and more forcible and severe terms and even assume an appearance of being angry. But we shall have recourse to this sort of reproof, as we do to cautery and amputation, rarely and reluctantly—never at all, unless it is unavoidable and no other remedy can be discovered. We may seem angry, but anger should be far from us; for in anger nothing right or judicious can be done.