I love being on stage. I'm completely totally relaxed. It's the only time in my life when I know where I am and what's coming next. The other Robert Powell is probably fairly melancholic. Let's just say happiness isn't my default position. There are dark parts. I'm very good at it. I frighten people sometimes.
The willingness to keep learning is I think the most important thing about trying to be good at anything. You never want to stop learning.