Limitless

I can run a 5k, because it exists and I know people who have done them.  I can run a 22k, because once I got lost and ended up running 13.1 miles.  So, I know I am capable of that.  My friend Kevin bailed on a triathlon and talked me in to doing it.  I showed up and won.  I am capable of that.  I am training for an Ironman and I know that I am capable of this because, well, I decided that I am.
Our lives are limitless, if we choose to view it that way.  If you can imagine it, is is possible.  The word impossible is really just a way of saying, "I am not strong enough."  I would like to think that I live a life with out limits.  Once I have conquered one thing, and the limit has been pushed, I change the limit.  Because what is life if it's stagnant?  What would happen if everything was mediocre?  What if you raced that same race, with the same effort and same result as the many before?  Would you settle for that?
As we go through our lives and we challenge ourselves, we test our limits.  We discover that it wasn't impossible.  Rather, it was just another one of life's little tests.  We overcome and we redefine "limit."  We find that we never really had a limit, because our lives are limitless.