Saeed Nafisi analyzed and edited several critical works. He is well known for his works on Rudaki and Sufi literature. Parviz Natel-Khanlari and Gholamhossein Yousefi, who belong to Nafisi's generation, were also involved in modern literature and critical writings. Natel-Khanlari is distinguished by the simplicity of his style. He did not follow the traditionalists, nor did he advocate the new. Instead, his approach accommodated the entire spectrum of creativity and expression in Persian literature. Another critic, Ahmad Kasravi, an experienced authority on literature, attacked the writers and poets whose works served despotism.