This is the Grammar Guy column, a weekly feature written by Curtis Honeycutt. I can think of a few things off the top of my head that I hope never to use: math, a fire extinguisher, Pepto Bismol and ...

I don’t remember when I first learned about single quotation marks, but I have a vague memory of assuming they were as useful as quotation marks, or close to it. Sometimes you quote someone. Sometimes ...