Even the truly silly advice, like "Do not inject opinion," doesn't really do harm. (No force on earth can prevent undergraduates from injecting opinion. And any

Even the truly silly advice, like "Do not inject opinion," doesn't really do harm. (No force on earth can prevent undergraduates from injecting opinion. And anyway, sometimes that is just what we want from them.) Geoffrey's writing would be stronger omitting "truly", "really" and "anyway". It isn't just novice writers who need reminders to omit needless words.