Advice comes in two flavours:
- what to do (positive advice),
- what not to do (negative advice).
Positive advice is like being shown Edgar Rubin’s vase …
… and being told you should look for two faces.
Aha, a revelation! Your eyes have been opened; your problems have been fixed.
Negative advice is like being shown the same vase …
… and being told it’s not a vase. Then the interpretation is up to you.
Yes, I did flip the image; yes, I added some black, some white. I not only changed my perspective, I embellished it—according to my imagination.
Negative advice is far more open-ended and sometimes it’s the only kind you can give with a degree of certainty. In particular, here’s Noah Lukeman, in the opening of his book The First Five Pages.
Quote: There’re no rules to assure great writing, but there are ways to avoid bad writing.
Note, however, that avoiding poor writing is a necessary, but by no means sufficient, condition for producing great writing. Indeed, like with my vase example above, even after you’ve been told what not to do, your literary venture—in all its newfound gloss and glory—may fall short of a masterpiece. Just because you’ve been shown which way lies artistic hell, doesn’t mean you’ve found a ladder to the heavenly abode of your muse.
(It occurs to me: eight of the Ten Commandments are of the negative form thou shalt not.)