I agree with Dante, that the hottest places in hell are reserved for those who in a period of moral crisis maintain their neutrality.
Source, in full
King quoted here John F. Kennedy who at the signing of a charter establishing the German Peace Corps in Bonn, West Germany (24 June 1963) remarked: Dante once said that the hottest places in hell are reserved for those who, in a period of moral crisis, maintain their neutrality.