You will see and hear things that will seem to you impossible among human beings with immortal souls

You may believe what I say; for I write only that whereof I know. I was twenty-one years in that cage of obscene birds. I can testify, from my own experience and observation, that slavery is a curse to the whites as well as to the blacks. It makes white fathers cruel and sensual; the sons violent and licentious; it contaminates the daughters, and makes the wives wretched. And as for the colored race, it needs an abler pen than mine to describe the extremity of their sufferings, the depth of their degradation.

Yet few slaveholders seem to be aware of the widespread moral ruin occasioned by this wicked system. Their talk is of blighted cotton crops—not of the blight on their children’s souls.

If you want to be fully convinced of the abominations of slavery, go on a southern plantation, and call yourself a negro trader. Then there will be no concealment; and you will see and hear things that will seem to you impossible among human beings with immortal souls.
~ Harriet A. Jacobs (1861)