live it up...

i was on facebook when someones status was "im only 1/5 of the way through my life." this really bugged me. how do they know? what if they unexpectedly die tomorrow? then they were well past 1/5 of their life. we don't know how much time we have left of our lives so why don't we live it up. we may not have another 4/5 to live. you have to carpe diem before you run out of diem to carpe.