Slavery is founded in the selfishness of man's nature -- opposition to it is in his love of justice. These principles are an eternal antagonism; and when brought into collision so fiercely, as slavery extension brings them, shocks, and throes, and convulsions must ceaselessly follow. Repeal the Missouri Compromise -- repeal all compromises -- repeal the Declaration of Independence -- repeal all past history, you still cannot repeal human nature. It still will be the abundance of man's heart, that slavery extension is wrong; and out of the abundance of his heart, his mouth will continue to speak.