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. — Mark Twain
There’s immeasurable value within Mark Twain’s quote and the lesson is worth repeating. It’s not what you know that gets you in trouble, but it’s the things you think you know but are actually wrong. If you don’t question your assumptions about the world around you, then you might well dig yourself into failure.