And one of the inmates who made the prison to attract global attention was prisoner 466/64, Nelson Rolihlahla Mandela. Mandela, referred to as Madiba or Tata (Father of the nation), who was later to become President of South Africa, spent 18 of his 27- year jail term in Robben Island prison. He never gave up. The bold inscription on the walls of the docking area, THE HUMAN SPIRIT CANNOT BE MENACLED, or another, THE TRIUMPH OF THE HUMAN SPIRIT, are testaments to the struggle and the never-say-die mentality of Mandela and his other freedom fighters during the anti-apartheid struggle.
Source: Robben Island Prison: A peep into Mandela’s cell – Vanguard News