You're only as good as the people who choose to care about you.
Definitely a good line, and one that I personally agree with. Like the aforementioned funeral comment, there's always the "you can judge a person by his friends" or what sounds like the opposite, "you can judge a person by his enemies."
I've always been the sort to make a few, lasting friendships as opposed to many thin friendships that don't really last for any length of time. So in my life, the people who choose to care about me? I think I'd like what that says about me.