“[Nonviolence] is directed against forces of evil rather than against persons who happen to be doing the evil. It is evil that the nonviolent resister seeks to defeat, not the persons victimized by evil.”

“Welt muss mehr denn je diese Botschaft hören,” Giessener Allgemeine Zeitung, Giessen, Germany, April 12, 2005.
Attributed

1920s, The Doctrine Of The Sword (1920)
Context: Nonviolence in its dynamic condition means conscious suffering. It does not means meek submission to the will of the evil-doer, but it means the putting of one's whole soul against the will of the tyrant. Working under this law of being, it is possible for a single individual to defy the whole might of an unjust empire to save his honor, his religion, his soul and lay the foundation for the empire's fall or its regeneration.
And so I am not pleading for India to practice nonviolence because it is weak. I want her to practice nonviolence being conscious of her strength and power. No training in arms is required for realization of her strength. We seem to need it because we seem to think that we are but a lump of flesh. I want India to recognize that she has a soul that cannot perish and that can rise triumphant above every physical weakness and defy the physical combination of a whole world.

Speech delivered in Finney Chapel at Oberlin College (7 February 1957), as reported in "When MLK came to Oberlin" by Cindy Leise, in The Chronicle-Telegram (21 January 2008) http://chronicle.northcoastnow.com/2008/01/21/when-mlk-came-to-oberlin/
1950s
Context: The non-violent Negro is seeking to create the beloved community. He directs his attack on the forces of evil rather than on individuals. The tensions are not between the races, but between the forces of justice and injustice; between the forces of light and darkness.

Non-Violent Resistance - Often misquoted as "You assist an evil system most effectively by obeying its orders and decrees. An evil system never deserves such allegiance."
Posthumous publications (1950s and later)
Context: You assist an unjust administration most effectively by obeying its orders and decrees. An evil administration never deserves such allegiance. Allegiance to it means partaking of the evil.
A good person will resist an evil system with his whole soul. Disobedience of the laws of an evil state is therefore a duty.

Source: Discipleship (1937), Revenge, p. 142

Source: Mythology: Timeless Tales of Gods and Heroes

1950s, Three Ways of Meeting Oppression (1958)

Source: Discipleship (1937), Revenge, p. 142.
Context: Jesus bluntly calls the evil person evil. If I am assailed, I am not to condone or justify aggression. Patient endurance of evil does not mean a recognition of its rights. That is sheer sentimentality, and Jesus will have nothing to do with it. The shameful assault, the deed of violence and the act of exploitation are still evil. … The very fact that the evil which assaults him is unjustifiable makes it imperative that he should not resist it, but play it out and overcome it by patiently enduring the evil person. Suffering willingly endured is stronger than evil, it spells death to evil.