Answer:
Nelson Mandela was a South African leader who was tried for treason by the white South African government. he and seven other leader were sentenced to life imprisonment in 1964, for during to oppose the apartheid regime in his country. He spent the next 28years in Robben Island, South Africans most dreaded prison.
Demosthenes was a proud Greek who disliked the Macedonians as a nation, but he also hated the Macedonian people and everyone who lived on that geographical area. What Demosthenes wanted for the city-states was that they would rise up against them - this they eventually did too, so the answer would be; yes, they followed his "advice".
