Speakers who use figurative language?

Martin Luther King used figurative language in many of his speeches. I would use the "I've been to the the Mountaintop" speech...here's a link a href="http://www.americanrhetoric.com/speeches/mlkivebeentothemountaintop.htm" rel="nofollow"http://www.americanrhetoric.com/speeches…/a . In the beginning of the speech he uses a lot of imagery, "I would watch God's children in their magnificent trek from the dark dungeons of Egypt through, or rather across the Red Sea, through the wilderness on toward the promised land." He uses similes such as, "And then we would be thrown in the paddy wagons, and sometimes we were stacked in there like sardines in a can." Another good example: "We are going to have to grapple with the problems that men have been trying to grapple with through history, but the demands didn't force them to do it. Survival demands that we grapple with them." There is a lot of figurative language in this speech I would check it out.