The following is a speech made by James Henry Hammond of the floor of the US Senate in the defense of black slavery.
http://en.wikipedia.org/wiki/James_Henry_Hammond

Our slaves are black, of another and inferior race. The status in which we have placed them is an elevation. They are elevated from the condition in which God first created them, by being made our slaves. None of that race on the whole face of the globe can be compared with the slaves of the South. They are happy, content, unaspiring, and utterly incapable, from intellectual weakness, ever to give us any trouble by their aspirations. Yours are white, or your own race; you are brothers of one blood. They are your equals in natural endowment of intellect, and they feel galled by their degradation. Our slaves do not vote. We give them no political power. Yours do vote, and, being the majority, they are the depositaries of all your political power. If they knew the tremendous secret, that the ballot-box is stronger than "an army with banners," and, not as they have mistakenly attempted to initiate such proceedings by meeting in parks, with arms in their hands, but by the quiet process of the ballot-box. You have been making war upon us to our very hearthstones. How would you like for us to send lecturers and agitators North, to teach these people this, to aid in combining, and to lead them?

http://faculty.chass.ncsu.edu/slatta/hi216/documents/slavery/defense1.htm