"Through our scientific and technological genius, we have made of this world a neighborhood and yet we have not had the ethical commitment to make of it a brotherhood. But somehow, and in some way, we have got to do this. We must all learn to live together as brothers or we will all perish together as fools. We are tied together in the single garment of destiny, caught in an inescapable network of mutuality. And whatever affects one directly affects all indirectly. For some strange reason I can never be what I ought to be until you are what you ought to be. And you can never be what you ought to be until I am what I ought to be."

Martin Luther King, Jr., Remaining Awake Through a Great Revolution, 31 March 1968

"We must meet hate with love. We must meet physical force with soul force. There is still a voice crying out through the vista of time, saying: Love your enemies, bless them that curse you, pray for them that despitefully use you. Then, and only then, can you matriculate into the university of eternal life. That same voice cries out in terms lifted to cosmic proportions: He who lives by the sword will perish by the sword. And history is replete with the bleached bones of nations that failed to follow this command. We must follow nonviolence and love."

Martin Luther King, Jr., Give Us the Ballot, 17 May 1957