You only....

 live once, but if you work it right, once is enough.
Hmmmm, pondering this thought.  What I get out of it is that if you live each day to the fullest and enjoy each and every person, every opportunity is taken, you love with all your heart, you take in every aspect of life, you smile, you look at your glass as always half full, you fulfill all your dreams and accomplish all your tasks, you become who you were destin to be, you seek nothing but find everything, you dream in black and white but live out your dreams in color .....then....there is no need for more than one life.  Because there is nothing left.