No rational man, cognizant of the facts, believes that the average negro is the equal . . . of the white man. And if this be true, it is simply incredible that, when all his disabilities are removed . . . he will be able to compete successfully with his bigger-brained and smaller-jawed rival, in a contest which is to be carried out by thoughts and not by bites."
I have no purpose to introduce political and social equality between the white and black races. There is a physical difference between the two, which, in my judgment, will probably forever forbid their living together on 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 any thing 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 rights enumerated in the Declaration of Independence -- the right of life, liberty, and the pursuit of happiness. I hold that he is as much entitled to these as the white man. I agree with Judge Douglas that he is not my equal in many respects, certainly not in color -- perhaps not in intellectual and moral endowments; but in the right to eat the bread without the leave of any body else which his own hand earns, he is my equal and the equal of Judge Douglas, and the equal of every other man (Lincoln 1858).
He believes in the doctrine of freedom, or equal personal rights for all men, and he pronounces the system of slavery to be root and branch an abomination -- thus making his physiological definition of the Negro's place among men equivalent to an earnest plea for Negro emancipation. Nay, as will have been noted, be goes farther, and, in virtue of the strength of his feeling with respect to slavery, avows a state of opinion regarding the American War in which many who share his feeling with respect to slavery will refuse to go along with him (Taylor 1864).