Mandela spent a total of twenty-seven years imprisoned, a sum that would equal over a quarter of his life. yet, he maintained that if he had been gifted with the ability to see the future, he would have made the same decisions. despite their dire consequences, he believed they were the right decisions (mandela 8). which book was used as a source for this text passage? nelson mandela and apartheid in world history nelson mandela conversations with myself mandela’s way: lessons in life