Mulla was sitting with a group of men, bragging about how fit he was. "Even though I'm old, my strength hasn't diminished one bit since I was a young man." They asked, "How can you be so sure?" Mulla explained, "There's a massive stone mortar in our courtyard. When I was young, I couldn't move it an inch. And now that I'm old, I still can't move it an inch! See? My strength hasn't changed at all."