Some specific strategies he uses are his diction, his use of metaphors and rhetorical devices which cast freedom into a good light and tying dark things to oppression. This is showing the lack of freedoms and rights in a decidedly bad light. Throughout his speeches he repeats “I have a dream” and the phrase is repeated constantly to hammer home Martin Luther King’s inspirational concepts. Some other examples of repetition in King’s speech were “we cannot be satisfied” and “now is the time.” This adds to the appeal of the speech because it makes it stronger and more powerful. These terms that King repeats are key words that have to do with ending racism. Also He uses a heightened vocabulary, demonstrated by such words as "manacles," "languished," and "redemptive". Those intelligent vocabularies present his speech in a logical and professional form.
Both Martin Luther King’s “I have a dream” and Obama’s “Yes we can!” speeches have an underlining theme. Both are calls for an action. In both speeches, the main goal is to create unity toward a single purpose. Martin Luther King’s speech was for justice and equality to be achieved through the US constitution whereas Obama is attempting to change, reaching for a higher purpose and uniting to solve the problems in America (as he has said) "fundamentally change the constitution". Another difference is that Obama briefly addressed a variety of issues facing the country while King's focus