“Regrets are like molecules. We're all made up of a lot of them. They are elemental. Building blocks. The foundations of memory. You can dawdle in the past, allow it to shadow you, or you can walk forward into the light of tomorrow.But you can't altogether disregard what has already been- byways chosen, detours taken. The misbegotten decisions you can never reverse, but only by sorting through them can you find where you took the wrong turns and gain proper perspective. Time is a parabolic lens, bringing hindsight into focus.”