Grammar Rule You Probably Don't Know

However, if you're an English speaker, you probably use this rule anyway.

That quote comes from a book called The Elements of Eloquence: How to Turn the Perfect English Phrase. Adjectives, writes the author, professional stickler Mark Forsyth, “absolutely have to be in this order: opinion-size-age-shape-colour-origin-material-purpose Noun. So you can have a lovely little old rectangular green French silver whittling knife. But if you mess with that order in the slightest you’ll sound like a maniac.” From Quartz.