Consider Tolstoy. I’m pretty sure he didn’t have MS. But he surely had endurance. Can you imagine writing a book as long as War and Peace? (Just try reading it. It’s a classic, but it takes endurance to get through that many pages!)
Anyone living with multiple sclerosis knows firsthand how energy levels and physical capabilities can run out suddenly and without warning. A day’s plans can change in an instant, simply because the MonSter decides to zap us with total exhaustion, crippling numbness, excruciating pain, or other onslaughts.