A kind, gentle face can often hide a million memories of hardship and suppression, but when it breaks into a broad smile it seems to solve a million problems.
So it is with one of the most famous and instantly recognisable faces on the planet - that of Nelson Mandela.
Originally broad and heavyset, Mandela's visage suffered during his incarceration in Robben Island, leaving it gaunt and a shadow of its former self.
Nevertheless, the spirit will always shine through, as can be seen in the joy and happiness shown when the great man grins.