«عَوِيلْ شَتَمْ أَصِيلْ، نَهَارْ نَادِي»

The saying holds that abuse from a contemptible person does no harm to someone of real worth. Instead, it confirms that worth. The noble one has no reason to take offense and can greet the insult as a sign of good fortune. The 'dewy' day is figurative: a fresh, auspicious day, not weather.

More broadly, it advises composure in the face of slander. Hostility from the unworthy can be read as evidence of one's own merit. Answering in kind would only lower a dignified person to the insulter's level.

Use it to reassure someone abused by a person of poor character: the attack reflects well on them and calls for calm, not retaliation. It also works as a dry retort. Because it brands the insulter as base, using it about a real person can sound like a sharp put-down.