A four-time winner of the Pulitzer Prize, Robert Frost was one of America's leading 20th-century poets. Normally utilizing traditional verse forms, Frost pioneered the interplay of rhythm and meter and the poetic use of the vocabulary and inflections of everyday speech. His poetic and political conservatism caused him to lose favor with some literary critics. However, his reputation as a major poet is secure. Frost succeeded in realizing his life's ambition: to write "a few poems it will be hard to get rid of."