The Talented Tenth http://teachingamericanhistory.org/library/index.asp?document=174, published as the second chapter of The Negro Problem, a collection of articles by African Americans (New York: James Pott and Company, 1903)

“It was a bright September afternoon, and the streets of New York were brilliant with moving men…. He was pushed toward the ticket-office with the others, and felt in his pocket for the new five-dollar bill he had hoarded…. When at last he realized that he had paid five dollars to enter he knew not what, he stood stock-still amazed…. John… sat in a half-maze minding the scene about him; the delicate beauty of the hall, the faint perfume, the moving myriad of men, the rich clothing and low hum of talking seemed all a part of a world so different from his, so strangely more beautiful than anything he had known, that he sat in dreamland, and started when, after a hush, rose high and clear the music of Lohengrin's swan. The infinite beauty of the wail lingered and swept through every muscle of his frame, and put it all a-tune. He closed his eyes and grasped the elbows of the chair, touching unwittingly the lady's arm. And the lady drew away. A deep longing swelled in all his heart to rise with that clear music out of the dirt and dust of that low life that held him prisoned and befouled. If he could only live up in the free air where birds sang and setting suns had no touch of blood! Who had called him to be the slave and butt of all?… If he but had some master-work, some life-service, hard, aye, bitter hard, but without the cringing and sickening servility…. When at last a soft sorrow crept across the violins, there came to him the vision of a far-off home — the great eyes of his sister, and the dark drawn face of his mother…. It left John sitting so silent and rapt that he did not for some time notice the usher tapping him lightly on the shoulder and saying politely, 'will you step this way please sir?'… The manager was sorry, very very sorry — but he explained that some mistake had been made in selling the gentleman a seat already disposed of; he would refund the money, of course… before he had finished John was gone, walking hurriedly across the square… and as he passed the park he buttoned his coat and said, 'John Jones you're a natural-born fool.”

W.E.B. Du Bois book The Souls of Black Folk

Then he went to his lodgings and wrote a letter, and tore it up; he wrote another, and threw it in the fire....
Source: The Souls of Black Folk (1903), Ch. XIII: Of the Coming of John

“Daily the Negro is coming more and more to look upon law and justice, not as protecting safeguards, but as sources of humiliation and oppression. The laws are made by men who have little interest in him; they are executed by men who have absolutely no motive for treating the black people with courtesy and consideration; and, finally, the accused law-breaker is tried, not by his peers, but too often by men who would rather punish ten innocent Negroes than let one guilty one escape.”

W.E.B. Du Bois book The Souls of Black Folk

Source: The Souls of Black Folk (1903), Ch. IX: Of the Sons of Master and Man

“Human nature is not simple and any classification that roughly divides men into good and bad, superior and inferior, slave and free, is and must be ludicrously untrue and universally dangerous as a permanent exhaustive classification.”

W.E.B. Du Bois

Source: The Wisdom of W.E.B. Du Bois (2003), p. 10

“I sit with Shakespeare and he winces not. Across the color-line I move arm in arm with Balzac and Dumas, where smiling men and welcoming women glide in gilded halls. From out the caves of the evening that swing between the strong-limbed earth and the tracery of the stars, I summon Aristotle and Aurelius and what soul I will, and they come all graciously with no scorn nor condescension. So, wed with Truth, I dwell above the Veil. Is this the life you grudge us, O knightly America? Is this the life you long to change into the dull red hideousness of Georgia? Are you so afraid lest peering from this high Pisgah, between Philistine and Amalekite, we sight the Promised Land?”

W.E.B. Du Bois book The Souls of Black Folk

Source: The Souls of Black Folk (1903), Ch. VI: Of the Training of Black Men

“The Soviet Union does not allow any church of any kind to interfere with education, and religion is not taught in public schools. It seems to me that this is the greatest gift of the Russian Revolution to the modern world. Most educated modern men no longer believe in religious dogma. If questioned they will usually resort to double-talk before admitting the fact. But who today actually believes that this world is ruled and directed by a benevolent person of great power who, on humble appeal, will change the course of events at our request? Who believes in miracles? Many folk follow religious ceremonies and services and allow their children to learn fairy tales and so-called religious truth, which in time the children come to recognize as conventional lies told by their parents and teachers for the children's good. One can hardly exaggerate the moral disaster of the custom. We have to thank the Soviet Union for the courage to stop it.”

W.E.B. Du Bois

The Autobiography of W.E. Burghardt Du Bois (1968), Ch. IV : The Soviet Union; he later states in Ch. XVI : My Character: "I think the greatest gift of the Soviet Union to modern civilization was the dethronement of the clergy and the refusal to let religion be taught in the public schools."

“It is, then, the strife of all honorable men and women of the twentieth century to see that in the future competition of the races the survival of the fittest shall mean the triumph of the good, the beautiful, and the true; that we may be able to preserve for future civilization all that is really fine and noble and strong, and not continue to put a premium on greed and imprudence and cruelty.”

W.E.B. Du Bois book The Souls of Black Folk

Source: The Souls of Black Folk (1903), Ch. IX: Of the Sons of Master and Man

“The men of the Niagara Movement coming from the toil of the year's hard work and pausing a moment from the earning of their daily bread turn toward the nation and again ask in the name of ten million the privilege of a hearing. In the last year the work of the Negro hater has flourished in the land. Step by step the defenders of the rights of American citizens have retreated. The work of stealing the black man's ballot has progressed and the fifty and more representatives of stolen votes still sit in the nation's capital. Discrimination in travel and public accommodation has so spread the some of our weaker brethren are actually afraid to thunder against color discrimination as such and are simply whispering for ordinary decencies.”

W.E.B. Du Bois

The Niagara Movement, Address to the Country

“It is ridiculous to seek to excuse Robert Lee as the most formidable agency this nation ever raised to make 4 million human beings goods instead of men. Either he knew what slavery meant when he helped maim and murder thousands in its defense, or he did not. If he did not he was a fool. If he did, Robert Lee was a traitor and a rebel–not indeed to his country, but to humanity and humanity’s God.”

W.E.B. Du Bois

Essay on Robert E. Lee http://inthesetimes.com/article/20447/Robert-E-Lee-WEB-DuBois-Racist-Murderer-Confederacy-Monuments (1928)