Professor J. P. R. Wallis writes of the development of poetry and literature in South Africa. He suggests that "the insurmountable obstacle in the way of those who would discourse of South African literature is that as yet it does not exist," in that the Union of the nation has "not unity in any intimate spiritual sense of the word." Wallis continues in exploring the different authors that are working in South Africa, such as poets F. Carey Slater, Roy Campbell, and Charles Murray, among other prose writers.