You've got to sustain some kind of passion, and therefore the great bluesmen and women from Tony Morrison to white ones like Tennessee Williams to Bruce Springsteen on the vanilla side of town, along with Bob Dylan, or on the chocolate side of town, you know, it could be Leroy Carr or Curtis Mayfield or Aretha Franklin -- they are prisoners of hope. They're neither optimists nor pessimists; they are prisoners of hope because they care. As long as you care, and there's one little precious child out there with sparkling eyes, you've got to do something. And if you don't, the rocks are going to cry out. That's why Coltrane kept blowing his horn, my brother, because if he didn't blow his horn the rocks were going to cry out. That genius cared.