My fellow Americans,ask not what your country can do for you

my fellow americans,ask not what your country can do for you,ask what you can do for your country.my fellow citizens of the world,ask not what america will do for you,but what together we can do for the *** of men.finally whether you are citizens of america,or citizens of the world,ask of us here,the same high standards of strength and sacrifice which we ask of you.with a good conscience of our only sure reward,with history the final judge of our deeds,let us go forth to lead the land we love,asking his blessing and his help,but knowing that here on earth,god's work must truly be our own.--by john f.kennedy 求这个演讲的视频