"The heart of a fool is in his mouth, and the tongue of a wise man is in his heart." — Ghurar al-Hikam

 

"The heart of a fool is in his mouth, and the tongue of a wise man is in his heart."
— Ghurar al-Hikam

Arabic:
قَلْبُ الأَحْمَقِ فِي فِيهِ، وَلِسَانُ الْحَكِيمِ فِي قَلْبِهِ.
— غرر الحكم