To sell the overplus I cannot, because I am principled against this kind of traffic in the human species. To hire them out, is almost as bad, because they could not be disposed of in families to any advantage, and to disperse the families I have an aversion. What then is to be done? Something must or I shall be ruined; for all the money (in addition to what I raise by Crops, and rents) that have been received for Lands, sold within the last four years, to the amount of Fifty thousand dollars, has scarcely been able to keep me a float.
Letter to Robert Lewis, 18 August 1799, published in John Clement Fitzpatrick, The writings of George Washington from the original manuscript sources, volume 37, pp. 338-9