A couple of my favorite quotes that I like to share with my Brother, a card-carrying Flat Earther:
“There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge”
-Isaac Asimov
“The good thing about science is that it’s true whether or not you believe in it”
-Neil DeGrasse Tyson