Read the excerpt from The Souls of Black Folk by W. E. B. Du Bois. Third, while it is a great truth to say that the Negro must strive and strive mightily to help himself, it is equally true that unless his striving be not simply seconded, but rather aroused and encouraged, by the initiative of the richer and wiser environing group, he cannot hope for great success. In his failure to realize and impress this last point, Mr. Washington is especially to be criticised. His doctrine has tended to make the whites, North and South, shift the burden of the Negro problem to the Negro’s shoulders and stand aside as critical and rather pessimistic spectators; when in fact the burden belongs to the nation, and the hands of none of us are clean if we bend not our energies to righting these great wrongs. What is the author’s main claim?