There are in these volumes several other essays, under different titles, on the same subject; but in most instances, although the language is varied, the same arguments exert their power on the mind of the writer. Aided by the common sympathy of the people among whom he lived, and the conscientious operations of his own mind, his judgment on the decision of the question of right and wrong became unchangeably fixed; while the evidence forced upon him by the only class of facts in relation to the subject which his education and associations in society enabled him to comprehend, became daily more imposing, more exciting in their review, more lucid in their exposing an image of deformity, the most wicked of the offspring of evil. Filled with horror, yet as if allured by an evil charm, his mind seems to have had no power to banish from its sight its horrid vision. Nor is it singular that it should, to some extent, become the _one idea_—his leading chain of thought. To him, the proofs of his doctrine became a blaze of light, so piercingly brilliant that nothing of a contrary bearing was worthy of belief or consideration. The following extracts will perhaps sufficiently develop the state to which his mind had arrived on this subject of his study. Vol. vi. p. 38, he says—“My maxim is, Any thing but slavery!” Page 50. “The history of West India emancipation teaches us that we are holding in bondage one of the best races of the human family. The negro is among the mildest and gentlest of men. He is singularly susceptible of improvement from abroad. His children, it is said, receive more rapidly than ours the elements of knowledge.” Page 51. “A short residence among the negroes in the West Indies impressed me with their capacity for improvement; on all sides, I heard of their religious tendencies, the noblest of human nature. I saw, too, on the plantation where I resided, a gracefulness and dignity of form and motion rare in my own native New England. And that is the race which has been selected to be trodden down and confounded with the brute.” If slavery in the West Indies has thus elevated the African tribes above the majority of the people of New England, we will not ask the question, whether the doctor’s disciples propose the experiment on their countrymen. But there is, nevertheless, abundant proof that slavery to the white races does necessarily, and from philosophical causes, have the most direct tendency to elevate the moral, mental, and physical ability of the African; in fact, of any other race of men sunk equally low in degradation and ruin.