from his first autobiography:
The impression which I had received respecting the character and condition of the people of the north, I found to be singularly erroneous. I had very strangely supposed, while in slavery, that few of the comforts, and scarcely any of the luxuries, of life were enjoyed at the north, compared with what were enjoyed by the slaveholders of the south. I probably came to this conclusion from the fact that northern people owned no slaves. I supposed that they were about upon a level with the non-slaveholding population of the south. I knew they were exceedingly poor, and I had been accustomed to regard their poverty as the necessary consequence of their being non-slaveholders. I had somehow imbibed the opinion that, in the absence of slaves, there could be no wealth, and very little refinement.