". In the meantime the African slaves had augmented in number from about 600,000 at the date of the adoption of the constitutional compact to upward of 4,000,000. In moral and social condition they had been elevated from brutal savages into docile, intelligent, and civilized agricultural laborers, and supplied not only with bodily comforts but with careful religious instruction. Under the supervision of a superior race, their labor had been so directed as not only to allow a gradual and marked amelioration of their own condition, but to convert hundreds of thousands of square miles of the wilderness into cultivated lands covered with a prosperous people; towns and cities had sprung into existence, and had rapidly increased in wealth and population under the social system of the South;..." -- Jefferson Davis
Doesn't sound like he thought much of them.