The original Walt Whitman wrote
Do I contradict myself?
Very well then I contradict myself,
(I am large, I contain multitudes.)
and it’s a great quote both in and out of its original context. Who knows, maybe there’s a closet Whitman fan among the makers of CSE HTML Validator? They’ve just sent me an email asking why I did not upgrade to the latest version of the validator. Here’s a part of it (click to enlarge):