If any man at this day sincerely believes that a proper division of local from federal authority, or any part of the Constitution, forbids the Federal Government to control as to slavery in the federal territories, he is right to say so, and to enforce his position by all truthful evidence and fair argument which he can. But he has no right to mislead others, who have less access to history, and less leisure to study it, into the false belief that "our fathers, who framed the Government under which we live," were of the same opinion--thus substituting falsehood and deception for truthful evidence and fair argument. If any man at this day sincerely believes "our fathers who framed the Government under which we live," used and applied principles, in other cases, which ought to have led them to understand that a proper division of local from federal authority or some part of the Constitution, forbids the Federal Government to control as to slavery in the federal territories, he is right to say so. But he should, at the same time, brave the responsibility of declaring that, in his opinion, he understands their principles better than they did themselves; and especially should he not shirk that responsibility by asserting that they "understood the question just as well, and even better, than we do now." But enough! _Let all who believe that "our fathers, who framed the Government under which we live, understood this question just as well, and even better, than we do now," speak as they spoke, and act as they acted upon it. This is all Republicans ask--all Republicans desire--in relation to slavery. As those fathers marked it, so let it be again marked, as an evil not to be extended, but to be tolerated and protected only because of and so far as its actual presence among us makes that toleration and protection a necessity. Let all the guaranties those fathers gave it, be, not grudgingly, but fully and fairly maintained_. For this Republicans contend, and with this, so far as I know or believe, they will be content. And now, if they would listen--as I suppose they will not--I would address a few words to the Southern people.