Tirukkural 129

The wound burnt by fire will heal inside. The scar burnt by the tongue will not.

தீயினாற் சுட்டபுண் உள்ளாறும் ஆறாதே நாவினாற் சுட்ட வடு.

tiyinal sutta pun ullarum arate / navinal sutta vadu

The wound burnt by fire will heal inside. The scar burnt by the tongue will not.

The way a family talks can protect or harm mental health. Shame-sentences leave marks that outlast a fever. This is why stigma is not a small social habit.