This is probably one of my favorite sayings.  You may get plenty of “do overs” in life, but you don’t get a life “do over”. Hence the phrase, “Life is not a dress rehearsal”. You are always “on”.  You have no choice but to go out there and give life your best shot.  You’re not going to get another chance!  “So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.” (Mark Twain)