With the death of Nelson Mandela, we have lost one of the few genuinely world-changing figures of our time. For although seen narrowly, Mandela’s principal achievement – and lifelong goal – was to bring freedom to his own country, his ideals, his language, and the principles for which he stood inspired countless millions far from South Africa, and continued to do so – and this is a key point – in new terrains and with new dreams after South...