I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation.
     Five score years ago,a great American,in whose symbolic shadow we stand today,signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves, who had been seared in the flames of withering injustice. It came as a joyous day-break to end the long night of their captivity.
     But one hundred years later, the Negro is still 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. One hundred years later, the Negro lives on a lonely island of poverty in the midst of vast ocean of material prosperity.One hundred years later, the Negro is still languished in the corners of American society and finds himself an exile in his own land.
So we have come here today to dramatize an appalling condition.
     In a sense, we've come to our nation's Capital to cash a check. When the architects of our republic wrote the magnificent words of the Constitution and the Declaration of Independence, they were signing a promissory note to which every american was to ffall heir.This note was a promise that all men--yes,black men as well as white men--would be guaranteed the unalienable rights of life,liberty,and the pursuit of happiness.
     It is obvious today that America has defaulted on this promissory note insofar as her cithzens of color are concerned. Instead of honoring this sacred obligation, America has given the Negro people a bad check;a check which has come back marked"insufficient funds."But we refuse to believe that the bank  of justice is bankrupt.We refuse to believe that there are insufficient funds in the great vaults of opportunity of this nation.So we've come to cash this check--a check that will give us upon demand the riches of freedom and (来源：http://www.EnglishCN.com)
the security of justice.We have also come to this hallowed spot to remind America of the fierce urgency of now.This is no time to engage in the luxury of cooling off to take the tranquilizing drug of gradualism.Now is the time to make real the promises of Democracy.Now is the time to rise from the dark and desolate valley of segregation to the sunlight of racial justice.Now is the time to lift our nation from the quicksands of racial injustice to the solid rock of brotherhood.Now is the time to make justice a reality for all of
God's children.
    It would be fatal for the nation to overlook the urgency of the moment.This sweltering summer of the Negro's legitimate discontent will not pass until there is an invigorating autumn of freedom and equality.nineteen sixty-three is not an end,but a beginning.Those who hope that the Negro needed to blow off steam and will now be content will bave rude awakening if the nation returns to business as usual.There will be neither rest nor tranquility in America until the Negro is granted his citizenship rights.The whirlwinds of r-
evolt will continue to shake the foundations of our nation until the bright day of justice emerges.
    But there is something that I muxt say to my people who stand on the warm threshold which leads into the palace of justice.In the process of gaining our rightful place we must not be guity of wrongful deeds.Let us not seek to satisfy our thirst for freedom by drinking from the cup of bitterness and hatred.
    We must forever conduct our struggle on the high plane of dignity and discipline. We must not allow our creative protest to degenerate into physical violence.Again and again we must rise to the majestic heights of meeting physical force with soul force. The marvelous new militancy which has engulfed the Negro community must not lead us to a distrust of all white people, for many of our white brothers,as evidenced by their presence here today, have come to realize that their destiny is tied up with our destiny.And they have come to realize that their freedom is inextricably bound to our freedom.We cannot walk alone.
    And as we walk we must make the pledge that we shall always march ahead. We can not turn back. There are those who ask the devotees of civil rights, "When will you be satisfied?"We can never be satisfied as long as the Negro is the victim of the unspeakable horrors of police brutality.We can never be satisfied as long las our bodies, heavy with the fatigue of travel,can not gain lodging in the motels of the highways and the hotels of the cities.We cannot be satisfied as long as the Negro's basic mobility is from a smaller ghetto to a larger one.We can never be satisfied as long as our children are stripped of their selfhood and robbed of their dignity by signs stating"For Whites Only."We cannot be satisfied as long as a Negro in Mississippi cannot vote and a Negro in New York believes he has nothing for which to vote.No,no, we are not satisfied,and we will not be satisfied until justice rolls down like waters and righteousness like a mighty stream.
    I am not unmindful  that some of you have come here out of great trials and tribulations.Some of you have come fresh from narrow jail cells.Some of you have come from areas where your quest for freedom left you battered by the storms of persecution and staggered by the winds of police brutality.You have been the veterans of creative suffering.Continue to work with the faith that unearned suffering is redemptive.
    Go back to Mississippi,go back to Alabama,go back to South Carolina,go back to Georgia,go back to Louisiana,go back to the slums and ghettos of our Northen cities,knowing that somehow this situation can and will be changed. Let us not wallow in the valley of despair.
    I say to you today,my friends,so even though we face the difficulties of today and tomorrow,I still have a dream.It is a dream deeply rooted in the American dream.
I have a dream that one day this nation will rise up and live out the true meaning of its creed:"We hold these truths to be self-evident;that all men are created equal."
    I have a dream that one day on the red hills of Georgia the sons of former slaves and the sons of former slaveowners will be able to sit down together at the table of brotherhood;I have a dream--
    That one day even the state of Mississippi ,a desert state sweltering with the heeat of injustice, sweltering with the heat of oppression, will be transformed into an oasis of freedom and justice; I have a dream--
    That my four little children will one day live in a nation where they will not be judged by thecolor of their skin but by the content of their character;I have a dream today.
    I have a dream that one day down in Alabama,with its vicious racists,with its governor having his lips dripping with the words of interposition and nullification,one day right there in Alabama little black boys and black girls as sisters and brothers;I have a dream today.
    I have a dream that one day every valley shall be exalted,every hill and mountain shall be made low,and rough places will be made straight,and the glory of the Lord shall be revealed,and all flesh shall see it toghther.
    This is our hope.This is the faith that I go back to the South with.With this faith we will be able to hew out of the mountain of despair a stone of hope.With this faith we will be able to transform the jangling discords of our nation into a beautiful symphony of brotherhood.With this faith we will be able to work together,to pray together,to struggle togehter,to go to jail together,to stand up for freedom together,knowing that we will be free one day.
    This will be the day....This will be the day when all of God's children will be able to sing with new meaning."My country'tis of thee,sweet land of liberty,of thee I sing.Land where my fathers died,land of the pilgrim's pride from every mountainside,let freedom ring,"and if America is to be a great nation--this must become true.
    So let freedom ring--from the prodigious hilltops of New Hampshire,let freedom ring;from the mighty mountains of New York,let freedom ring--from the heightening Alleghenies of Pennsylvania!
    Let freedom ring from the snowcapped Rockies of Colorado!
    Let freedom ring from the curvaceous slopes of California!
    But not only that;let freedom ring from Stone Mountain of Georgia!
    Let freedom ring from Lookout Mountain of Tennessee!
    Let freedom ring from every hill and molehill of Mississippi.From every mountainside,let freedom ring!
    When we allow freedom ring,when we let it ring from every city,we 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!"