In Last of the Blue Devils someone asks Count Basie what he wants to be remembered for and he replies that he just wants to be remembered as a nice guy. I told this to some people once, all of whom said "easy for him: he's Count fucking Basie and is going to be remembered for lots of things". But as I get older I think I understand what he means.
When I was young I thought it was important to write for publications that would be in libraries forever, teach at a university and have at least some students who remembered me, and more recently have my name on some films that would last. But finally I think none of it matters as much as your friends, all of whom--like oneself-- are far from perfect.
As Chris pointed out, none of us live forever and right now my ambition is to try to find more time to spend with friends while those of us who remain are still around. (I've had 2 close friends die this year-- so far.) This also also requires more time for travel. And, of course, as with most ambitions, I'm putting this off while I deal with more mundane issues like making a living.
I think my kids are terrific but I don't feel I can take much credit for that. Each of them has their own unique personality which they've manifested virtually since birth.
The college at which I used to teach put up plaques for a bunch of former students and teachers and asked each of us for one piece of advice. All I could come up with was: "Be slow to take offense."