Some folks, like Newt Gingrich, read Newt Gingrich's surge in this week's polls as a warm, if belated, embrace of his plan to balance the budget and get this country "back on track." Other folks, like a certain Words Work writer, wonder if the word "ain't" reads a tad unpresidential. "It ain't a day for quitting nothing," Texas governor Rick Perry assured us late last week after his infamous debate brain freeze. ....Oh, fine. But seriously, "ain't"? And not just "ain't," but "ain't a day for quitting nothing?" Was that the best line to hitch your star to on the...