This man's nonfiction includes an ascetic treatise
This man's nonfiction includes an ascetic treatise The Cradle and the Grave and the political works The Politics of Christ and The Life of Marcus Brutus. His poetry was posthumously edited and published by his friend Jose Gonzalez de Salas. He describes the adventures of Paul the Sharper in his picaresque novel "The Life of a Scoundrel," or La Vida del Buscon, and satirically imagines death in his series Los Suenos. He's also remembered for wearing nose glasses and a lifelong feud with Luis de Gongora. FTP, name this Spanish writer of the Golden Age. 
This man's nonfiction includes an ascetic treatise The Cradle and the Grave and the political works
Francisco de Quevedo (y Villegas) 