From writer George Saunders’ recent interview in the NYT Magazine:
[Chekhov] says a work of art doesn’t have to solve a problem — it just has to formulate it correctly… My job, rather than answering your question, is to allow [the characters] to make the best possible case for their view…I wrote myself into a place where the question got more and more profound, and I found myself less and less capable of giving a definitive answer. That’s not for an artist to do. You ratchet the question up, and you go, “Yeah, that’s a tough one.”
See also: his advice for graduates.