Have always loved photography and when I was a child I went on a photography holiday with my dad and spent the best part of the first day in a classroom learning all about composition and particular attention was paid to this "Golden Ratio", still frame many of my snaps to its principles today (when I remember what I'm doing), just looks more aesthetically pleasing IMO.
As to living a legacy, leave it to the 13 year olds. My legacy is my daughters and their children and maybe their children etc etc, that's good enough for me.
