What is the main reason reason for using vivid words

Focus question: miss maudie says, “atticus finch is the same in his house as he is in public” (61). what evidence so far proves this true?

How does this comparison reinforce what powell is trying to say in this paragraph

Read the opening lines of sojourner truth's speech "ain't i a woman? " well, children, where there is so much racket there must be something out of kilter. i think that 'twixt the negroes of the south and the women at the north, all talking about rights, the white men will be in a fix pretty soon. but what's all this here talking about? what tone do these lines convey?