By patience then we possess our souls, because when we are said to govern ourselves, we begin to possess that very thing which we are. But for this reason, the possession of the soul is laid in the virtue of patience, because patience is the root and guardian of all virtues. Now patience is to endure calmly the evils which are inflicted by others, and also to have no feeling of indignation against him who inflicts them.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Hom. 35. in Ev.