It’s the creed of an individual editor, but even if it isn’t a universal creed, it might shed some light for you on editing and an editor’s role.
My knee is acting up. Or “acting out.” Possibly just getting back at me for tripping backwards over that dressing-table bench this morning (it took a hit behind the joint and collapsed, but then it did catch as I started to fall and kept me from splattering, so now it feels it has performed above and beyond.) When does this ever get better?! *grump*