In Martin Luther King’s “I Have a Dream” speech, King makes the bold claim that the day itself when he was giving the speech would “go down in history as the greatest demonstration for freedom in the history of our nation”.
Whether King fully realized it or not that day, the speech, and the powerful way he delivered the speech, indeed has become one of the most important speeches ever given about racial equality.
One example of a rhetorical technique is the use of rhythm and repetition. King's use of rhythm is almost like singing.
Early in the speech, King uses a rhythmic technique when he starts the third paragraph of the speech with “But one hundred years later, the Negro still is not free.
One hundred years later, the life of the Negro is still sadly crippled by the manacles of segregation and the chains of discrimination.”
King goes on to start the next three sentences with the same expression “But one hundred years later .…” The style of language in this paragraph exemplifies Kings’s powerful style of communication.
He uses metaphors such as “manacles of segregation and the chains of discrimination” to reincofrce the emotional understanding of racial struggle.