“Ultimately a genuine leader is not a searcher for consensus, but a molder of consensus. On some positions, Cowardice asks the question, "Is it safe?" Expediency asks the question, "Is it politic?" And Vanity comes along and asks the question, "Is it popular?" But Conscience asks the question "Is it right?" And there comes a time when one must take a position that is neither safe, nor politic, nor popular, but he must do it because Conscience tells him it is right. I believe today that there is a need for all people of good will to come together with a massive act of conscience and say in the words of the old Negro spiritual, "We ain't goin' study war no more." This is the challenge facing modern man.”----------------------------------/
https://en.wikiquote.org/wiki/Martin_Luther_King_Jr.
(Bold emphasis added.)
King often delivered slightly revised versions of his speeches at different venues, and a later variant of this speech, delivered at the Episcopal National Cathedral, Washington D.C. (31 March 1968), though retaining much, contained statements not in the 1965 version.
Martin Luther King Jr. (born Michael King Jr.; January 15, 1929 – April 4, 1968) was an American Baptist minister and activist who became the most visible spokesperson and leader in the American civil rights movement from 1955 until his assassination in 1968. King advanced civil rights through nonviolence and civil disobedience, inspired by his Christian beliefs and the nonviolent activism of Mahatma Gandhi. He was the son of early civil rights activist Martin Luther King Sr. | https://en.wikipedia.org/wiki/Martin_Luther_King_Jr.
Martin Luther King Jr. (born Michael King Jr.; January 15, 1929 – April 4, 1968) was an American Baptist minister and activist who became the most visible spokesperson and leader in the American civil rights movement from 1955 until his assassination in 1968. King advanced civil rights through nonviolence and civil disobedience, inspired by his Christian beliefs and the nonviolent activism of Mahatma Gandhi. He was the son of early civil rights activist Martin Luther King Sr. | https://en.wikipedia.org/wiki/Martin_Luther_King_Jr.