"I agree with Dante, that the hottest places in hell are reserved for those who in a period of moral crisis maintain their neutrality. There comes a time when silence becomes betrayal." -- Rev. Dr. Martin Luther King Jr. (b. 1929-01-15, d. 1968-04-04), "Why I Am Opposed to the War in Vietnam", 1967-04-30 [emphasis added] Note explanation in Wikiquote about the Dante reference being a nod to a JFK quote, and the passage in Dante's Divine Comedy that Kennedy, in turn, had probably been referring to.