Final answer:
Nelson Mandela's speech centers on the collective struggle for liberty and unity in South Africa. He utilizes repetition to emphasize the importance of an inclusive democratic future post-apartheid.
Step-by-step explanation:
In Nelson Mandela's first part of his speech, the central idea that Mandela is developing revolves around the struggle for liberty and the unity required to achieve it. Through repetition, Mandela reinforces the notion that the end of apartheid and the establishment of a democratic government are not just victories for a particular group but a collective triumph for all South Africans. The use of repetition aligns with the organizational strategy and emphasis on ideas as seen with other influential figures like Martin Luther King Jr. in his 'I Have a Dream' speech.
Mandela's repeated emphasis on unity aimed to build a common vision among South Africans, highlighting the aspirations for a more equitable society. This was crucial as he sought to convince different parties, including white business and political leaders, of the benefits that would arise from abandoning apartheid. Several times throughout the speech, these themes reemerge, emphasizing their importance and helping to connect various ideas and paragraphs, projecting what is to come in the new era of South Africa.