i have a dream

The speech made by Martin Luther King, Jr is talking about negro was not treaten as well as white people. So, King encouraged negro to fight for their rights and pursue of happiness.
His speech is strong, such as the sentence: let us not seek to satisfy our thirst for freedom by drinking from the cup of bitterness and hatred. "Justice rolls down like waters, and righteousness like a mighty stream." "sweltering with the heat of oppression will be transformed into an oasis of freedom and justice." According to these sentence, we can feel that king hoped negro would not be judged by the color of their skin but by the content of their character.
Moreover, there are some beautiful parallel sentence, such as "every hill and mountain shall be made low, the rough places will be made plain, and the crooked paces will be made straight; and the glory of the Lord shall be revealed and all flesh shall see it together."
Anyway, this is a really nice and inspiring speech. If you have time, you better to read this one!