I've been thinking a lot about gratitude as the mother of all virtues. And I think I'm right in saying this. I think you would give me everything you own in 25 years’ time to be the age you are now and as healthy as you are right now. And I think it's a really interesting meditation to think about, right? If you had a time machine, if you were 30 years in the future, if you could be this healthy and feel this good and be this age, you'd give everything materially that you own in 30 years’ time to be back here. And just that, just take that in for a minute.