It is evident that although a southerner, Mr. Phillips has lived so far from the Negroes that he knows less about them than those who have periodically come into contact with them but on certain occasions have given the blacks serious study. This is evidenced by Mr. Phillips’ own statement when he says in his preface, that “a generation of freedom has wrought less transformation in the bulk of the blacks than might casually be supposed.” This failure to understand what the Negroes have thought and felt and done, in other words, the failure to fathom the Negro mind, constitutes a defect of the work.
— Carter G. Woodson review of Review of American Negro Slavery, by Ulrich Bonnell Phillips. The Journal of Negro History 4, no. 1 (1919): 102–3.