Themistocles replied that a man's discourse was like to a rich Persian carpet, the beautiful figures and patterns of which can only be shown by spreading and extending it out; when it is contracted and folded up, they are obscured and lost.
PlutarchWhen malice is joined to envy, there is given forth poisonous and feculent matter, as ink from the cuttle-fish.
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