Without the freedom to fail, you can't really succeed in any meaningful way in art. I love the sense of risk and it not being a sure thing.
Speaking personally, as an atheist who is having a crisis of no-faith, I'm finding my atheism is quite inadequate to me. I've done two shows now, back-to-back, that put me squarely in the position of being a believer - and having to believe that I'm a believer.
[observation, 2012] I'm sixty-three. I'm not going to waste a day just turning in a mechanical performance. Every moment is too important for that.