American playwright of acerbic wit. Twice won the Pulitzer Prize, and is best known for his collaborative authorship of "Once in a Lifetime," with Moss Hart (1930); "Of Thee I Sing," with Morrie Ryskind and Ira Gershwin (1931); "Dinner at Eight," with Edna Ferber (1932); "You Can't Take It with You" and "The Man Who Came to Dinner," again with ...