["The Runner Stumbles"] is a new, serious, well-made, and continuously interesting American play, all the more worthy of our attention because it comes at a time when most of what is new on Broadway is not serious, most of what is serious is not well made, most of what is well made is not interesting, and most of what is interesting is not American. Let us therefore praise the author, Milan Stitt, for providing us with what amounts to an event as well as a play; I know nothing about him except that he appears to be named after a city, but if he is fairly young—anything under forty passes for young with me—then I predict that he has many more plays to give us. "The Runner Stumbles" has a pleasing richness of emotion behind the calculatedly spare nature of its language, and that is almost...