We go through our days looking for meaning and purpose to our lives, and I think I've found just that in playing Team Fortress 2.  While I am getting better almost daily, I have found several life lessons from killing (and being killed) in the course of hours (and hours) of gameplay.  I thought I'd share a few of the more poignant lessons.

10)  Rushing into any situation with guns blazing and little forethought only leads to a quick and painful death.
9)  Having great focus (Sniper) without any direction or goals is meaningless.
8)  Being the fastest (Scout) or the strongest (Heavy) isn't nearly as effective as being prepared.
7)  You can heal (Medic) the pain of others, but you're not very effective if you do so at your own expense.
6)  You can successfully build (Engineer) almost anything, but you should always have a contingency plan for when things blow up.
5)  Using only one of the weapons at your disposal (Demo) only insures that you'll be the first to run out of ammo. 
4)  If you make your living in the shadows (Spy), its only a matter of time before you're caught.
3)  If you are close enough to light the fire (Pyro), you are most likely close enough to feel the heat.
2)  Having everyone play the same role (Soldier) is the easiest way to getting nothing accomplished. 
1)  All of us are better then any one of us.