More "Who Said It?"

So, who said this:

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.

Answer is below the fold.

Abraham Lincoln

Yeah, the Douglas reference gives it away, doesn't it?