The nonviolent resister is just as strongly opposed to the evil against which he protests as is the person who uses violence. His method is passive or nonaggressive in the sense that he is not physically aggressive toward his opponent. But his mind and emotions are always active, constantly seeking to persuade the opponent that he is mistaken. This method is passive physically but strongly active spiritually; it is nonaggressive physically but dynamically aggressive spiritually.
— MLK, Nonviolence and Racial Justice, an article in Christian Century, February 1957