Here is an interesting question to ask your spouse or significant other.  Who or What has had the greatest influence on you and changed your life?  Personally, I have several people that have played huge factors into who I am today and three big events that have changed my life for the better.  As they would say at the end of G.I. Joe, "Now you know and knowing is half the battle". The other half of the battle is applying the information you learn from each other and putting it to good use.