Ages of Man According to Martin

"Your youth evaporates in your early 40s when you look in the mirror. And then it becomes a full-time job pretending you're not going to die. Then in your 50s everything is very thin.  And then suddenly you've got this huge new territory inside you, which is the past, which wasn't there before.  A new source of strength. Then that may not be so gratifying to you as the 60s begin, but then I find that in your 60s, everything begins to look sort of slightly magical again. And it's imbued with a kind of leave-taking resonance, that it's not going to be around very long, this world, so it begins to look poignant and fascinating."
--Martin Amis