“Oppressed people deal with their oppression in three characteristic ways. One way is acquiescence: the oppressed resign themselves to their doom. They tacitly adjust themselves to oppression and thereby become conditioned to it. In every movement toward freedom some of the oppressed prefer to remain oppressed.”

1960s, The Quest for Peace and Justice (1964)

1950s, Loving Your Enemies (November 1957)
Context: History unfortunately leaves some people oppressed and some people oppressors. And there are three ways that individuals who are oppressed can deal with their oppression. One of them is to rise up against their oppressors with physical violence and corroding hatred. But oh this isn’t the way. For the danger and the weakness of this method is its futility. Violence creates many more social problems than it solves. And I’ve said, in so many instances, that as the Negro, in particular, and colored peoples all over the world struggle for freedom, if they succumb to the temptation of using violence in their struggle, unborn generations will be the recipients of a long and desolate night of bitterness, and our chief legacy to the future will be an endless reign of meaningless chaos. Violence isn’t the way.

1950s, Three Ways of Meeting Oppression (1958)
Context: A second way that oppressed people sometimes deal with oppression is to resort to physical violence and corroding hatred. Violence often brings about momentary results. Nations have frequently won their independence in battle. But in spite of temporary victories, violence never brings permanent peace. It solves no social problem; it merely creates new and more complicated ones.

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

1950s, Three Ways of Meeting Oppression (1958)
Context: The third way open to oppressed people in their quest for freedom is the way of nonviolent resistance. Like the synthesis in Hegelian philosophy, the principle of nonviolent resistance seeks to reconcile the truths of two opposites, acquiescence and violence, while avoiding the extremes and immoralities of both. The nonviolent resister agrees with the person who acquiesces that one should not be physically aggressive toward his opponent; but he balances the equation by agreeing with the person of violence that evil must be resisted. He avoids the nonresistance of the former and the violent resistance of the latter. With nonviolent resistance, no individual or group need submit to any wrong, nor need anyone resort to violence in order to right a wrong.

1950s, Three Ways of Meeting Oppression (1958)
Context: There is such a thing as the freedom of exhaustion. Some people are so worn down by the yoke of oppression that they give up. A few years ago in the slum areas of Atlanta, a Negro guitarist used to sing almost daily: "Been down so long that down don't bother me." This is the type of negative freedom and resignation that often engulfs the life of the oppressed.

A Marxist Case For Intersectionality (2017)

Quoted in War and Conflict Quotations: A Worldwide Dictionary of Pronouncements from Military Leaders, Politicians, Philosophers, Writers and Others (1997) by Michael C. Thomsett and Jean F. Thomsett
Paraphrased variant: "I doubt if the oppressed ever fight for freedom..."
Context: It is doubtful if the oppressed ever fight for freedom. They fight for pride and power — power to oppress others. The oppressed want above all to imitate their oppressors; they want to retaliate.