Why did martin luther king jr. choose to repeat the phrase "i have a dream"?

Which excerpt from “the girl who silenced the world for five minutes” supports suzuki’s argument that she is “losing [her] future”? coming here today, i have no hidden agenda. losing my future is not like losing an election or a few points on the stock market. and now we hear about animals and plants going extinct every day – vanishing forever. i'm only a child, yet i know we are all in this together and should act as one single world towards one single goal.

Read the passage from a raisin in the sun. mama: lord have mercy, baby. you done gone and bought your grandmother a hat? travis (very proud): open it! she does and lifts out an elaborate, but very elaborate, wide gardening hat, and all the adults break up at the sight of it. ruth: travis, honey, what is that? travis (who thinks it is beautiful and appropriate): it's a gardening hat! like the ladies always have on in the magazines when they work in their gardens. beneatha (giggling fiercely): travis—we were trying to make mama mrs. miniver—not scarlett o'hara! mama (indignantly): what's the matter with you all! this here is a beautiful hat! (absurdly.) i always wanted me one just like it! which word or phrase from the text best supports the idea that the adults think the hat is inappropriate? “have mercy” (giggling fiercely) (indignantly) “what’s the matter”

What parts of hamlet’s soliloquy support a more negative outlook on life?