The pain of labour for hand or foot is not contrary to nature, as long as the foot is doing the work of a foot and the hand the work of a hand. So lifewise for a man, qua man, there is nothing contrary to nature in pain, as long as he is doing the work of a man.'
- Marcus Aurelius - Meditations 6:33
We're just human.
I will only ever have two eyes, two ears, two hands, two legs and two feet (If I'm lucky). No matter how much stuff I own, I can only ever be doing one thing at a time. No matter how much stuff I own, I'll still only have 24 hours a day.
This works two fold.
1. I appreciate what I have more. Everyday I see people with perfectly normal legs catching the escalator up from the train station. I love to walk up them. While I've got them, I'll be walking everywhere I can, if I lose them, I guess it's time to catch the escalator.
2. I'm careful about what I own. With my limited time and my physical human limitations, I can only use so much at a time. So why have anymore than I need?
In the quest for more, we're still just human, bound by physical boundaries equal to all men.