‘It ain’t what you don’t know that gets you into trouble. It’s what you know for sure, that just ain’t so.’
OMG, that is so perfect for this exact moment in time! In the movie, ‘The Big Short,’ this quote is incorrectly attributed to Mark Twain. The sentiment has been expressed before, but the exact quote probably originated with the movie. I love artistic license, I use it all the time in my own artwork, its a very handy thing to have.