Good luck on your tagline.* I still haven't found my perfect one
  yet. It could be: How other people see you How you want other
  people to see you How you see yourself So, a hard mix.* I stuck
  philosopher on my profile (and ended up joining a few philosophy
  groups online) just because a damn good friend who I am
  neglectful about called me a Philosopher once. Before that?
  Never thought of myself as a Philosopher. The age thing?* I
  think it has Marketing potential.* We're in a youth obsessed
  culture and the specificness about your age is a ruler by which
  you're judged.* You can use that to your advantage by busting
  stereotypes. I don't think age matters for intellectual pursuits
  - but it's a potential marketing tool that you can use or not.
  Age discrimination exists. I fight it by declaring my age
  wherever I go, basically challenging anyone who stereotypes by
  age by forcing them to consider, "You REALLY don't know anything
  about "typical people my age" do you?* Because THERE ARE NO
  TYPICAL PEOPLE.* We're individuals. Now that impassioned speech?
  It's called a Rant.* It took me a long time to accept that I
  rant about things that I see as wrong and ranting is ok when
  it's done right. I think I do it right most of the time.* You do
  it right.* It's not just complaining, though.* It's educating
  and putting passion in it. "I give you the good and the bad and
  the way things REALLY are." I'd go with something like that as
  part of the tag line - something powerful sounding like that.*
  Or a list of adjectives.* That can work too.* I'm no good at
  those though. I know too many synonyms and can never narrow
  down.