From the True Meanings of Freedom

العَبْدُ حُرٌّ إِنْ قَنِعَ .. وَالحُرُّ عَبْدٌ إِنْ طَمِعَ

A slave is a free man when he’s content and pleased
While a free man’s a slave when his desires aren’t appeased.

Attributed to Imām Al-Shāfiʿī
Translated by Mikail ibn Mahboob Ariff