I need say hardly anything in favor of the Intellects of the Negroes, or of their capacities for virtue and happiness, although these have been supposed by some to be inferior to those of the inhabitants of Europe. The accounts which travelers give of their ingenuity, humanity and strong attachments to their parents, relations, friends and country, show us that they are equal to the Europeans... All the vices which are charged upon the Negroes in the southern colonies, and the West Indies, such as Idleness, Treachery, Theft and the like, are the genuine offspring of slavery, and serve as an argument to prove, that they were not intended, by Providence, for it.

On Slavekeeping (1773)