An article: Letters to an Artist I found on a project management wiki about art and work. It could use some editing, but it has some gems:
"Artists surf their work, riding each instructive wave. They are better positioned to extract the insights continually visiting us all."
"Being an artist is no more just about creating works of art than living is just about thinking. A remarkable array of complementary activities must occur if you are going to usefully create art. For the artists and for the rest of us also, learning to more skillfully shift between the necessary work and our essential work becomes the defining skill in our lives."