An homage to our best individual qualities in the US (initiative, openness, morality), a defense of the successful social programs we all benefit from, a quest for equality for all, a special consideration for the poor, an end to grueling wars, a call for collective action on common problems, an awareness of and fearlessness to face the new economic (and climatic) realities of the world... In short, an eloquent vindication of the search for life, liberty, and the pursuit of happiness. O Captain my Captain, count me in for the long haul!
And shit, mentioning the Stonewall and gay rights... This is a brave, admirable man.