Time Pressure

I have 1 minute to write this. My kids are finishing an episode of Spidey and his Amazing Friends. I hope I can write something meaningful. I'll probably fail. I would use money to buy time if I could. I can't. I don't know what I want to use the time for but I'd like to express myself, maybe challenge myself mentally or physically. I think once my responsibilities are done I'll just constantly be challenging myself mentally and physically. Why? Fitness? Haven't I proved my fitness already? I guess you can't ever completely "prove" your fitness because it constantly slips away. Physically you get weak, mentally you've fallen behind. I'm trying to hit a moving target. I hope you've learned something.