" For the sake of method, I could wish to consider the African trade,—first, with regard to the effect it has upon our own people ; and secondly, as it concerns the blacks, or, as they are more contemptuously styled, the negro slaves, whom we purchase upon the coast. But these two topics are so interwoven together, that it will not be easy to keep them exactly separate.
...
When I have charged a black with unfairness and dishonesty, he has answered, if able to clear himself, with an air of disdain, " What! do you think I am a white man ?"

Such is the nature, such are the concomitants, of the slave trade... Will not sound policy suggest the necessity of some expedient here? "

― John Newton , Thoughts Upon The African Slave Trade