Many years after receiving my graduate degree, I returned to my alma mater as a faculty member. one day, while in a crowded elevator, someone remarked on the elevator's inefficiency. I responded that they had not changed in the 20 years since I began there as a student.
When the doors finally opened, I felt a compassionate pat one my back, then turned around to see an elderly nun smiling at me. "You'll get that degree, dear," she whispered.
"Perseverance is a virtue."