Let's flesh it out a bit:
David Herbert Donald in Lincoln describes the scene on April 4, 1865, when President Lincoln went to visit the former Confederate capital, Richmond. Landing without fanfare from a barge on the James River, he was first noticed by some black workmen, undoubtedly freed slaves. Donald notes that:
Their leader, a man about sixty, dropped his spade and rushed forward, exclaiming, "Bless the Lord, there is the great Messiah! . . . Glory, Hallelujah!" He and others fell on their knees, trying to kiss the President’s feet. "Don’t kneel to me," Lincoln told them, embarrassed. "That is not right. You must kneel to God only, and thank him for the liberty you will hereafter enjoy." Quickly word of the President’s arrival spread, and he was soon surrounded by throngs of blacks, who shouted, "Bless the Lord, Father Abraham come."
http://www.whitehousehistory.org/02_learning/subs_9/activities_9/frame_act_903e.html
"If A can prove, however conclusively, that he may, of right, enslave B. -- why not B. snatch the same argument, and prove equally, that he may enslave A.?
-- You say A. is a white, and B. is black. It is --color--, then; the lighter, having the right to enslave the darker? Take care. By this rule, you are to be the slave to the first man you meet, with a fairer skin than your own.
You do not mean color exactly? -- You mean the whites are --intellectually-- the superiors of the blacks, and therefore, have the right to enslave them? Take care again. By this rule, you are to be slave to the first man you meet, with an intellect superior to your own.
But, say you, it is a question of --interest--; and, if you can make it your --interest--, you have the right to enslave another. Very well. And if he can make it his interest, he has the right to enslave you."
1854
My friends, I have detained you about as long as I desired to do, and I have only to say, let us discard all this quibbling about this man and the other man; this race and that race and the other race being inferior, and therefore they must be placed in an inferior position; discarding our standard that we have left us. Let us discard all these things, and unite as one people throughout this land, until we shall once more stand up declaring that all men are created equal."
A. Lincoln, 7/10/58
"I will say here, while upon this subject, that I have no purpose directly or indirectly to interfere with the institution of slavery in the States where it exists. I believe I have no lawful right to do so, and I have no inclination to do so. I have no purpose to introduce political and social equality between the white and the black races. There is a physical difference between the two, which in my judgment will probably forever forbid their living together upon the footing of perfect equality, and inasmuch as it becomes a necessity that there must be a difference, I, as well as Judge Douglas, am in favor of the race to which I belong, having the superior position. I have never said anything to the contrary, but I hold that notwithstanding all this, there is no reason in the world why the negro is not entitled to all the natural rights enumerated in the Declaration of Independence, the right to life, liberty and the pursuit of happiness. [Loud cheers.] I hold that he is as much entitled to these as the white man. I agree with Judge Douglas he is not my equal in many respects---certainly not in color, perhaps not in moral or intellectual endowment. But in the right to eat the bread, without leave of anybody else, which his own hand earns, he is my equal and the equal of Judge Douglas, and the equal of every living man."
August, 1858
"I do not expect the Union to be dissolved--I do not expect the house to fall--But I do expect it will cease to be divided. Either the opponents of slavery, will arrest the further spread of it, and place it where the public mind shall rest in the belief that it is the course of ultimate extinctioon; or its advocates will push it forward, till it shall become alike lawful in all the States, old as well as new--North as well as South. Have we no tendency towards the latter condition?"
1858
"The principles of Jefferson are the definitions and axioms of free society. And yet they are denied, and evaded, with no small show of success. One dashingly calls them "glittering generalities"; another bluntly calls them "self evident lies"; and still others insidiously argue that they only apply to "superior races."
These expressions, differing in form, are identical in object and effect. -- the supplanting the principles of free government, and restoring those of classification, caste, and legitimacy. They would delight a convocation of crowned heads, plotting against the people. They are the van-guard -- the miners and sappers -- of returning despotism. We must repulse them, or they will subjugate us. This is a world of compensations; and he that would -be- no slave, must consent to --have-- no slave. Those that deny freedom to others, deserve it not for themselves, and under a just God cannot long retain it."
3/1/59
"But to be plain, you are dissatisfied with me about the negro. Quite likely there is a difference of opinion between you and myself upon that subject. I certainly wish that all men could be free, while I suppose that you do not. ....peace does not appear as distant as it did. I hope it will come soon, and come to stay; and so come as to worth the keeping in all future time. It will have then been proved that, among free men, there can be no successful appeal from the ballot to the bullet; and that they who take such appeal are sure to lose their case, and pay the cost. And then, there will be some black men, who can remember that, with silent tongue, and clenched teeth, and steady eye, and well-poised bayonet they have helped mankind on to this great consumation; while, I fear, there will be some white ones, unable to forget that, with malignant heart, and deceitful speech, have strove to hinder it. Still let us not be over-sanguine of a speedy final triumph. Let us be quite sober. Let us dilligently apply the means, never doubting that a just God, in his own good time, will give us the rightful result."
8/23/63
"I am naturally anti-slavery. If slavery is not wrong, nothing is wrong. I can not remember when I did not so think, and feel...
In telling this tale I attempt no compliment to my own sagacity. I claim not to have controlled events, but confess plainly that events have controlled me. Now, at the end of three years struggle the Nation's condition is not what either party, or any man devised, or expected. God alone can claim it. Whither it is tending seems plain. If God now wills the removal of a great wrong, and wills also that we of the North as well as you of the South, shall pay for our complicity in that wrong, impartial history will find therein new cause to attest and revere the justice and goodness of God."
4/4/64
"it is also unsatisfactory to some that the elective franchise is not given to the colored man. I would myself prefer that it were now conferred on the very intelligent, and on those who serve our cause as soldiers."
4/11/65