"Poets, if they're genuine, must also keep repeating 'I don't know.' Each poem marks an effort to answer this statement, but as soon as the final period hits the page, the poet begins to hesitate, starts to realize that this particular answer was pure makeshift that's absolutely inadequate to boot. So the poets keep on trying."
-- Wislawa Szymborska (by the way, she writes crazy good poems .... I think the above is also true of photography)
(This is taken from an article by Courtney Queeney :: The Kings Are Boring: Some Thoughts on Women's Poetry)