https://www.goodfamilyman.com/2019/07/04/its-not-what-we-dont-know-that-gets-us-in-trouble-its-what-we-know-for-sure-that-just-aint-so-mark-twain/
It's not what we don't know that gets us in trouble. It's what we know for sure that just ain't so. - Mark Twain