Mark - any fluid we drink is water. Mostly. But Coca-cola tastes different from lemonade. It becomes kind of uninteresting to discuss things on cooking when everytime someone brings up a favorite beverage, the reply is that "hey, that's basically water too."
In addition, how about
There will be no further discussion once one drinks the "cool-aid." (Of any particular teacher, school, organization, or dogma.)
Sure have enjoyed the latest exchanges between informed individuals and inquisitive, thoughtful minds.
Ellis are you still on track with the books?
Peter do you have a date in mind for your next column?