GEORGE CARLIN is a world-renowned wordsmith and a comedy legend. From his classic set on the seven words you can't say on TV to his vulgarity-laced but socially enlightening rants on everything from modern children's names to how bathing in the Hudson River makes you immune to disease, the guy is pure comedy gold. He performs at the Fox Theatre Sat., OCT. 13. If you've never seen him before, take advantage of this opportunity: Carlin is no spring chicken, and he may not tour for much longer. $42-$45. 8 p.m. 660 Peachtree St. 404-817-8700. www.foxtheatre.org.