I don't mind getting older (at least not much), I mind not being able to do the things I love. As long as those things require a certain level of physical fitness, I'm going to strive to keep fit. But I would be naive if I expected myself to be as fast or as strong or as fearless now as when I was 20 years younger. I do know however that stamina "ages well", it just takes consistent training and not too many injuries. And general good health is of course something that everyone can work at and benefit from, at every age.
At some point my priorities may change. I don't mean that that I will ever happily accept poor health, but maybe keeping fit just might not seem so important, maybe because the effort overshadows the rewards, maybe because I've gained other interests in life. I don't know. I think that's what I think of in the term "aging gracefully" - not trying to be as fit or feel as "young" as possible, but making active choices about how to keep yourself capable of doing the things you enjoy doing.
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett