It is circumstance and proper measure that give an action its character, and make it either good or bad.
PlutarchSeeing the lightest and gayest purple was then most in fashion, he would always wear that which was the nearest black; and he would often go out of doors, after his morning meal, without either shoes or tunic; not that he sought vain-glory from such novelties, but he would accustom himself to be ashamed only of what deserves shame, and to despise all other sorts of disgrace.
PlutarchIt is easy to utter what has been kept silent, but impossible to recall what has been uttered.
PlutarchWe ought to give our friend pain if it will benefit him, but not to the extent of breaking off our friendship; but just as we make use of some biting medicine that will save and preserve the life of the patient. And so the friend, like a musician, in bringing about an improvement to what is good and expedient, sometimes slackens the chords, sometimes tightens them, and is often pleasant, but always useful.
Plutarch