Research assistants and associates from the global South are sometimes kept invisible, despite their crucial role in the research cycle.
His life's work was asserting the humanity and history of the Bantu people, while proposing that the soul was able to bring knowledge of the past and of the future into the present.
With humility that belied his global stature, his laugh came easily, and his generous storytelling taught lessons that his students grew into for many years after he shared them.
Decolonising mathematical sciences is possible. The answer lies in rediscovering existing African examples of teaching maths and including them in the Western body of knowledge.
Open access publishing still profits publishers, with little added value for researchers.