Read the excerpt from Thoughts and Sentiments.
It is therefore manifest, that something else ought yet to be done; and what is required, is evidently the incumbent duty of all men of enlightened understanding, and of every man that has any claim or affinity to the name of Christian, that the base treatment which the African Slaves undergo, ought to be abolished; and it is moreover evident, that the whole, or any part of that iniquitous traffic of slavery, can no where, or in any degree, be admitted, but among those who must eventually resign their own claim to any degree of sensibility and humanity, for that of barbarians.
Read the excerpt from Letters of the Late Ignatius Sancho, An African.
I am sure you will applaud me for beseeching you to give one half hour's attention to slavery, as it is at this day practised in our West Indies.—That subject, handled in your striking manner, would ease the yoke (perhaps) of many—but if only of one—Gracious God!—what a feast to a benevolent heart!—and, sure I am, you are an epicurean in acts of charity.—You, who are universally read, and as universally admired—you could not fail
In these excerpts, how does Cugoano's purpose differ from Sancho's purpose?