D.A. Carson uses the following little ditty to start the chapter on “Logical Fallacies” in his book Exegetical Fallacies.
Why Are Fire Engines Red?
They have four wheels and eight men;
four plus eight is twelve;
twelve inches make a ruler;
a ruler is Queen Elizabeth;
Queen Elizabeth sails the seven seas;
the seven seas have fish;
the fish have fins;
the Finns hate the Russians;
the Russians are red;
fire engines are always rushin’;
so they’re red.
When I hear some of my customers tell me they don’t see the need to study subjects like logic I think of this illustration. I’m not saying if you don’t study logic you’re going to start thinking like this but I’ve seen some stuff that comes pretty close. A little study can prevent a lot of embarrassment.