«اِلْغَضْبَانْ خَيِّ الْمَجْنُونْ»

The saying figuratively makes anger a close kin of madness, using the traditional figure of the madman for lost self-control rather than any statement about mental illness: once fury takes hold, any person stops weighing consequences and behaves like someone who has lost their reason. Words and deeds that would never pass in a calm moment come out freely.

Its practical force is a warning. Because rage briefly strips away judgment, decisions, threats, or insults delivered in that state deserve little trust, and the wise course is to wait until the heat subsides before acting or answering.

Suitable for cautioning someone not to act or speak while furious, or for explaining afterward why a person said hurtful or foolish things in a rage. It can also counsel patience toward an angry person, since their reason is temporarily clouded.