" But revenue from slave labor was only part of the profitability of slavery. Selling slaves was part of the commerce at every little Southern junction. Most farmers who had slaves bought or sold them at one time or another. “In slavery, niggers and mules was white folk’s living,” recalled an unnamed formerly enslaved woman in Tennessee, who said that her former master “would sell his own children by slave women just like he would any others. Just since he was making money…. My mother sold for $1,000. "

― Ned Sublette , The American Slave Coast: A History of the Slave-Breeding Industry