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 a table of brotherhood. I have a dream that one day even the state of Mississippi, a desert state, sweltering with the heat of injustice and oppression, will be transformed into an oasis of freedom and justice. I have a dream that my four children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character. I have a dream today.
C:\>perl -anle "for(@F){push @d,$_} END{@e=grep(!$tmp{$_}++,@d); print \"@e\"}" a.txt
I have a dream that one day this nation will rise up and live out the true meani
ng of its creed: "We hold these truths to be self-evident: all men are created e
qual." on red hills Georgia sons former slaves slaveowners able sit down togethe
r at table brotherhood. even state Mississippi, desert state, sweltering with he
at injustice oppression, transformed into an oasis freedom justice. my four chil
dren in where they not judged by color their skin but content character. today.
C:\>