"We can not understand each other, if our sympathies are always safely tucked away; we can not understand each other, if our approaches are always academic or conventional; we can not understand each other, if we crawl back into our shells every time we see a worm across our path."

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...academic credentials are neither a necessary nor a sufficient condition for having your ideas taken seriously. If a famous professor repeatedly says stupid things, then tries to claim he never said them, there's no rule against calling him a mendacious idiot - and no special qualifications required to make that pronouncement other than doing your own homework.Conversely, if someone without formal credentials consistently makes trenchant, insightful observations, he or she has earned the right to be taken seriously, regardless of background.

— Paul Krugman