Sacrament Meeting

A young man bore his testimony today and said, "I know that without God, nothing is possible."  This struck me.  He flipped what we hear so often in the church that with God nothing is impossible (which I can't find in scripture!  Funny, right? The closest is Jeremiah 32:27).  Anyway, it was a good sentiment.  We may accomplish things without God, but what's the meaning of it?  Without meaning, have we actually accomplished anything?  Not to mention, we may think we accomplished something without God, but did we really?