“During the lifetime of great revolutionaries, the oppressing classes relentlessly persecute them, and treat their teachings with malicious hostility, the most furious hatred and the most unscrupulous campaign of lies and slanders. After their death, attempts are made to convert them into harmless icons, to canonize them, so to say, and to surround their names with a certain halo for the "consolation" of the oppressed classes and with the object of duping them, while at the same time emasculating the revolutionary doctrine of its content, vulgarizing it and blunting its revolutionary edge.'”

Source: Pedagogia do oprimido (Pedagogy of the Oppressed) (1968, English trans. 1970)

Actually from State and Revolution by Vladimir Lenin, paraphrasing Marx in The Civil War in France.
Misattributed

Source: (1917), Ch. 5 [Lenin, Vladmir Illych, The State and Revolution, 1917, https://www.marxists.org/archive/lenin/works/1917/staterev/ch05.htm, Marx grasped this essence of capitalist democracy splendidly when, in analyzing the experience of the Commune, he said that the oppressed are allowed once every few years to decide which particular representatives of the oppressing class shall represent and repress them in parliament!]

Source: The Shadow of the Wind

Crabbed Age and Youth.
Virginibus Puerisque and Other Papers (1881)
Context: There is a strong feeling in favour of cowardly and prudential proverbs. The sentiments of a man while he is full of ardour and hope are to be received, it is supposed, with some qualification. But when the same person has ignominiously failed and begins to eat up his words, he should be listened to like an oracle. Most of our pocket wisdom is conceived for the use of mediocre people, to discourage them from ambitious attempts, and generally console them in their mediocrity. And since mediocre people constitute the bulk of humanity, this is no doubt very properly so. But it does not follow that the one sort of proposition is any less true than the other, or that Icarus is not to be more praised, and perhaps more envied, than Mr. Samuel Budgett the Successful Merchant. The one is dead, to be sure, while the other is still in his counting-house counting out his money; and doubtless this is a consideration. But we have, on the other hand, some bold and magnanimous sayings common to high races and natures, which set forth the advantage of the losing side, and proclaim it better to be a dead lion than a living dog. It is difficult to fancy how the mediocrities reconcile such sayings with their proverbs. According to the latter, every lad who goes to sea is an egregious ass; never to forget your umbrella through a long life would seem a higher and wiser flight of achievement than to go smiling to the stake; and so long as you are a bit of a coward and inflexible in money matters, you fulfil the whole duty of man.

Pedagogia do oprimido (Pedagogy of the Oppressed) (1968, English trans. 1970)

Source: The Infernal Devices, Clockwork Angel (2010), p. 150, spoken by Henry

#551
The Furrow (1986)

1880s, Speech on the Anniversary of Emancipation (1886)
Context: I admit the charge, but deny that nature, race, or color has anything to do with the fact. Any other race, with the same antecedents and the same conditions, would show a similar thieving propensity. The American people have this lesson to learn, that where justice is denied, where poverty is enforced, where ignorance prevails, and where any one class is made to feel that society is an organized conspiracy to oppress, rob, and degrade them, neither persons nor property would be safe... While I hold now, as I held years ago, that the South is the natural home of the colored race, and that there must the destiny of that race be mainly worked out, I still believe that means can be and ought to be adopted, to assist in the emigration of such of their number as may wish to change their residence to parts of the country, where their civil and political rights are better protected than at present they can be at the South... The Republican party is not perfect; it is cautious even to the point of timidity; but it is the best friend we have.