Life is a journey up a spiral staircase; as we grow older we cover the ground covered we have covered before, only higher up; as we look down the winding stair below us we measure our progress by the number of places where we were but no longer are. The journey is both repetitious and progressive; we go both round and upward.
William Butler YeatsSpeech after long silence; it is right, All other lovers being estranged or dead . . . That we descant and yet again descant Upon the supreme theme of Art and Song: Bodily decrepitude is wisdom; young We loved each other and were ignorant.
William Butler Yeats