BONGANI NYOKA ASPECTRE is haunting the South African academy, the spectre of knowledge decolonisation. Academics and university students are calling for decolonisation, but what they call brilliant is not new, and what they call new is not brilliant. As early as the 19th century, the South African poet William Wellington Gqoba grappled with the impact of Western education on Black people; in the early 20th century, Benedict Wallet Vilakazi and Herbert Isaac Ernest Dhlomo were debating the role of language and modernity in South Africa. Equally, the works of Cheikh Anta Diop on sources of knowledge and social history, Kenneth…