It is not enough for the Negroes to declare that color-prejudice is the sole cause of their social condition, nor for the white South to reply that their social condition is the main cause of prejudice. They both act as reciprocal cause and effect, and a change in neither alone will bring the desired effect. Both must change, or neither can improve to any great extent."(p.88)...."Only by a union of intelligence and sympathy across the color-line in this critical period of the Republic shall justice and right triumph,