Agreed. But nature set a limit on that—as it did on eating and drinking. And you’re over the limit. You’ve had more than enough of that. But not of working. There you’re still below your quota. You don’t love yourself enough. Or you’d love your nature too, and what it demands of you. People who love what they do wear themselves down doing it, they even forget to wash or eat. Do you have less respect for your own nature than the engraver does for engraving, the dancer for dance, the miser for money or the social climber for status? When they’re really possessed by what they do, they’d rather stop eating and sleeping than give up practicing their arts.”

Meditations by Emperor of Rome Marcus Aurelius