Rock n Roll is music from the neck down.
When you are growing up there are two institutional places that affect you most powerfully: the church, which belongs to God, and the public library, which belongs to you.
I'm an unpure purist, something like that.
Why would you want to be anything else if you're Mick Jagger?
You've got the sun, you've got the moon, and you've got the Rolling Stones.
I'm not getting old I'm evolving.