I have a dream: by Martin Luther King Jr.

http://americanrhetoric.com/speeches/mlkihaveadream.htm
This speech would be very familiar to everyone around the world. Indeed, it is the most famous speech made so far. Looking or listening to his speech, one cannot help but feel touched or even angered at the treatment of the African-Americans in the past. In fact it is similar to George Orwell's "Animal Farm".

"All animals are equal, but some animals are more equal than others."

Martin Luther King makes this speech because his people, the Negros, have been mistreated for many years in America despite the American dream of "We hold these truths to be self-evident, that all men are created equal." King only wants the whites of America to accept the Blacks as brothers and sisters and together make America a better country. Today, this can be seen in America. Even Barack Obama, the current President of the United States is an African-American.
His message is simple. He wants America to be a country where "justice rolls down like waters, and righteousness like a mighty stream", where the Negros "will not be judged by the color of their skin but by the content of their character". He wants freedom for the Negros everywhere around America, to share everything with the whites, with no "For whites only" signs on the streets. He wants the Negros to be able to vote for his president, to be able to sit with whites as equals. In other words, he wants to stop the slavery of the Negros.
His speech gives hope to the African-American audience and perhaps even some of the white people. he ends of with his dream that freedom will ring from every mountain in America, that they will be able to "speed up that day when all of God's children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing in the words of the old Negro spiritual:
Free at last! Free at last!
Thank God Almighty, we are free at last!"