"The longer they stay in power, the more African presidents seek to personalise power. Their success erodes the institutional basis of the state. The Carribean thinker C L R James once remarked on the contrast between Nyerere and Nkrumah, analysing why the former survived until he resigned but the latter did not: "Dr Julius Nyerere in theory and practice laid the basis of an African state, which Nkrumah failed to do.The African strongmen are going the way of Nkrumah, and in extreme cases Gaddafi, not Nyerere. The societies they lead are marked by growing internal divisions. In this, too, they are reminiscent of Libya under Gaddafi more than Egypt under Mubarak or Tunisia under Ben Ali. Whereas the fall of Mubarak and Ben Ali directed our attention to internal social forces, the fall of Gaddafi has brought a new equation to the forefront: the connection between internal opposition and external governments" - Mahmood Mamdani on What does Gaddafi's fall mean for Africa?