But the whole business of slavery is an evil of the first magnitude, and a most horrible iniquity to traffic with slaves and souls of men; and an evil, sorry i am, that it still subsists, and more astonishing to think, that it is an iniquity committed amongst christians, and contrary to all the genuine principles of christianity, and yet carried on by men denominated thereby. –thoughts and sentiments on the evil and wicked traffic of the slavery and commerce of the human species, quobna ottobah cugoano what belief does cugoano explicitly state in the passage?