To what standard did Lincoln appeal to challenge slavery?
Actually, I'll just save us all some time. Here is President Lincoln in a speech at Springfield, Illinois, June 26, 1857:
"Chief Justice Taney, in his opinion in the Dred Scott case, admits that the language of the Declaration is broad enough to include the whole human family, but he and Judge Douglas argue that the authors of that instrument did not intend to include negroes, by the fact that they did not at once, actually place them on an equality with the whites.
Now this grave argument comes to just nothing at all, by the other fact, that they did not at once, or ever afterwards, actually place all white people on an equality with one or another. And this is the staple argument of both the Chief Justice and the Senator, for doing this obvious violence to the plain unmistakable language of the Declaration. I think the authors of that notable instrument intended to include all men, but they did not intend to declare all men equal in all respects. They did not mean to say all were equal in color, size, intellect, moral developments, or social capacity. They defined with tolerable distinctness, in what respects they did consider all men crated equal – equal in ‘certain inalienable rights, among which are life, liberty, and the pursuit of happiness.’ This they said, and this meant.
They did not mean to assert the obvious untruth, that all were then actually enjoying that equality, nor yet, that they were about to confer it immediately upon them. In fact they had no power to confer such a boon. They meant simply to declare the right, so that the enforcement of it might follow as fast circumstances should permit. They meant to set up a standard maxim for free society, which should be familiar to all, and revered by all; constantly looked to, constantly labored for, and even though never perfectly attained, constantly approximated, and thereby constantly spreading and deepening its influence, and augmenting the happiness and value of life to all people of all colors everywhere.
The assertion that ‘all men are created equal’ was of no practical use in effecting our separation from Great Britain; and it was placed in the Declaration, not for that, but for future use. Its authors meant it to be, thank God, it is now proving itself, a stumbling block to those who in after times might seek to turn a free people back into the hateful paths of despotism. They knew the proneness of prosperity to breed tyrants, and they meant when such should re-appear in this fair land and commence their vocation they should find left for them at least one hard nut to crack."
Like Lincoln, we look to the Constitution for what the law
is at a given moment in time; we look to the Declaration to ensure that current or prospective laws are moral, and for counsel when the Constitution is found lacking in meeting the challenges of an evolving society. The Declaration is "God" in US law and blacks would still be slaves today without it. So wrote history.
