Gates' purpose was to show how the moment Mandela's release from prison was significant for him, for Africa, and the entire world, as it represented a moment of hope for humanity.
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However, when Mandela was released, his release from prison was very significant, as it represented the hope and certainty that blacks were not wrong to fight for their rights.
When Gates presents this moment, he shows that Mandela's release was an important moment for the whole world, as it promoted strength and resilience for all people.
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