Knowing When To Stop

This article in the Telegraph brings up an interesting issue for writers: knowing when to stop.

A similar question might be asked of any writer, because writing is always partial: it involves the choice of some words rather than others, and choice requires rejection. As Henry James observed, “Stopping, that’s art”: the writer must know what to shut out, when to shut up.

It could be the late hour, but I didn’t find anything particularly illuminating in the article.