There are no mistakes. The events we bring upon ourselves, no matter how unpleasant, are necessary in order to learn what we need to learn; whatever steps we take, they're necessary to reach the places we've chosen to go.
“I began to write a kind of waltz and in a little more than an hour I had the theme written.”
“I've been on the tour for many, many years. It's time for me to go now, before it's too late.”