The business of the storyteller is to ask questions, not to answer them.
—Joseph Conrad, novelist
Now I'm going to show that I really stay almost entirely in the genre of children's writing, because I don't remember who Joseph Conrad is. But I do find this statement from the Oxford Essential Guide to Writing interesting, and have been mulling it over. It was given in context in a section where they were talking about using natural endings for essays and papers. Their suggestion was to use discretion about making a final judgment at the end of the essay, and this was why.