A quote from Annie Dillard:
"A nun lives in the fires of the spirit, a thinker lives in the bright wick of the mind, an artist lives jammed in the pool of materials. (Or, a nun lives, thoughtful and tough, in the mind, a nun lives with that special poignancy peculiar to religious, in the exile of materials; and a thinker, who would think of something, lives in the clash of materials, and in the world of spirit where all long thoughts must lead; and an artist lives, of course, in the spirit. So.)"
From Holy the Firm