It said: “Don’t Believe Everything You Think.”What a fresh and welcome idea—especially in this time when half the country is certain the other half is crazy. “Don’t Believe Everything You Think” suggests we take half a step back from being so sure about our own opinions. An early appearance in print came in the 1992 self-help book, “Don’t Believe Everything You Think: The 6 Basic Mistakes We Make in Thinking” by Thomas Kida, a professor of business management. My best guess is I took the often-used phrase ‘don’t believe everything you see (or hear)’ and … just changed ‘see’ or ‘hear” to think.”Some contend the phrase dates back decades earlier and was inspired by Buddhist-influenced self-help books. All these encourage us to be certain that what we think is right and that those who think differently are wrong, even crazy.