“You are what is keeping and making the black race look bad. Wake up fool. Do not glorify this half a man, he has worked for nothing. He chose to keep himself where he is, not the white people. It is time to take responsibility for your own actions, and not act like a stinking fool. Kids and young black men and women look at this site, and believe that they are abused. That is a bold-faced lie. It is out of the mouths of cheap thugs like you that are hurting our young and taking away the chances they have to make themselves a productive part of society. Brothers and sisters, the only slavery in America now is the one you put yourself into. Rise up like Doctor King as taught us, and be a real human being. We are all in this togehter, white and black. Peace to all, and I hope this stupid fake hate stops real soon. We are all brothers and sisters. Do not be fooled by the tyranny of evil men like this. Lift yourself up, educate yourselves, and work hard for a good life. No one owes you anything. Stand proud as a person of color, and do something meaningful with your life. I did and I am the best at what I do! Peace out, R. Sherman.”

1850s, The Present Aspect of the Slavery Question (1859)
Context: This negative doctrine of Mr. Douglas that there are no rights anterior to governments is the end of free society. If the majority of a political community have a right to establish slavery if they think it for their interest, they have the same right to declare who shall be enslaved. The doctrine simply substitutes the despotic, irresponsible tyranny of many for that of one. If the majority shall choose that the interest of the State requires the slaughter of all infants born lame, of all persons more than seventy years of age, they have the right to slaughter them, according to what is called the Democratic doctrine. Do you think this a ludicrous and extreme case? But if the majority have a right to deprive a man of his liberty at their pleasure, they have an equal right to take his life. For life is no more a natural right than liberty. The individual citizen, according to Mr. Douglas, is not secure in his person, in his property, in his family, for a single moment from the whim or the passion or the deliberate will of the majority, if expressed as law. Might is not right. I have the power to hold a child by the throat until he turns purple and dies. But I have not the right to do it. A State or a Territory has the power to steal a man's liberty or labor, and to hold him and his children's children forever in slavery. It has the power to do this to any man of any color, of any age, of any country, who is not strong enough to protect himself. But it has no more right to do it to an African than to an American or an Irishman, no more right to do it to the most ignorant and forsaken foreigner than to the prosperous and honored citizen of its own country. We are going to do what Patrick Henry did in Virginia, what James Otis and Samuel Adams did in Massachusetts, what the Sons of Liberty did in New York, ninety years ago. We are going to agitate, agitate, agitate. You say you want to rest. Very well, so do we — and don't blame us if you stuff your pillow with thorns. You say you are tired of the eternal Negro. Very well, stop trying to turn a man into a thing because he happens to be black, and you'll stop our mouths at the same time. But while you keep at your work, be perfectly sure that we shall keep at ours. If you are up at five o'clock, we shall be up at four. We shall agitate, agitate, agitate, until the Supreme Court, obeying the popular will, proclaims that all men have original equal rights which government did not give and cannot justly take away.

Die Trying.

Bernick, Act III
The Pillars of Society (1877)

Crabbed Age and Youth.
Virginibus Puerisque and Other Papers (1881)
Context: All error, not merely verbal, is a strong way of stating that the current truth is incomplete. The follies of youth have a basis in sound reason, just as much as the embarrassing questions put by babes and sucklings. Their most antisocial acts indicate the defects of our society. When the torrent sweeps the man against a boulder, you must expect him to scream, and you need not be surprised if the scream is sometimes a theory. Shelley, chafing at the Church of England, discovered the cure of all evils in universal atheism. Generous lads irritated at the injustices of society, see nothing for it but the abolishment of everything and Kingdom Come of anarchy. Shelley was a young fool; so are these cocksparrow revolutionaries. But it is better to be a fool than to be dead. It is better to emit a scream in the shape of a theory than to be entirely insensible to the jars and incongruities of life and take everything as it comes in a forlorn stupidity. Some people swallow the universe like a pill; they travel on through the world, like smiling images pushed from behind. For God’s sake give me the young man who has brains enough to make a fool of himself! As for the others, the irony of facts shall take it out of their hands, and make fools of them in downright earnest, ere the farce be over. There shall be such a mopping and a mowing at the last day, and such blushing and confusion of countenance for all those who have been wise in their own esteem, and have not learnt the rough lessons that youth hands on to age. If we are indeed here to perfect and complete our own natures, and grow larger, stronger, and more sympathetic against some nobler career in the future, we had all best bestir ourselves to the utmost while we have the time. To equip a dull, respectable person with wings would be but to make a parody of an angel.

England's Ideal and Other Papers on Social Subjects (1887), Routledge, 2016, p. https://books.google.it/books?id=53uPCwAAQBAJ&pg=PT71

Source: You Can't Go Home Again

remark made in 1971, cited in Roger Lewis, Anthony Burgess (2002), p. 152
General

Mr. Muhammad teaches that as soon as we separate from the white man, we will learn that we can do without the white man just as he can do without us. The white man knows that once black men get off to themselves and learn they can do for themselves, the black man's full potential will explode and he will surpass the white man.
Playboy interview, regarding the ambition of the Black Muslims
Attributed

Source: Why Men Marry Bitches: A Woman's Guide to Winning Her Man's Heart