“Hate is just as injurious to the hater as it is to the hated. Like an unchecked cancer, hate corrodes the personality and eats away its vital unity. Many of our inner conflicts are rooted in hate. This is why the psychiatrists say, "Love or perish." Hate is too great a burden to bear.”

“Please be peaceful. We believe in law and order. We are not advocating violence, I want you to love your enemies... for what we are doing is right, what we are doing is just -- and God is with us.”

“All of the people of the world cannot do the so-called big things. Some of us will have to be content doing the so-called little things, but we must do the little things in a big way. We must do the ordinary things in an extraordinary manner. And we must overcome our sense of inferiority by doing just this - by somehow accepting that we have to do and doing that well”

“A man dies when he refuses to stand up for that which is right.”

“We are caught in an inescapable network of mutuality, tied in a single garment of destiny. Whatever affects one directly, affects all indirectly.”

“The old guard in any society resents new methods, for old guards wear the decorations and medals won by waging battle in the accepted manner.”

“You may be 38 years old, as I happen to be. And one day, some great opportunity stands before you and calls you to stand up for some great principle, some great issue, some great cause. And you refuse to do it because you are afraid…. You refuse to do it because you want to live longer…. You’re afraid that you will lose your job, or you are afraid that you will be criticized or that you will lose your popularity, or you’re afraid that somebody will stab you, or shoot at you or bomb your house; so you refuse to take the stand. Well, you may go on and live until you are 90, but you’re just as dead at 38 as you would be at 90. And the cessation of breathing in your life is but the belated announcement of an earlier death of the spirit.”

“Something is happening in Memphis; something is happening in our world. And you know, if I were standing at the beginning of time, with the possibility of taking a kind of general and panoramic view of the whole of human history up to now, and the Almighty said to me, "Martin Luther King, which age would you like to live in?" I would take my mental flight by Egypt and I would watch God's children in their magnificent trek from the dark dungeons of Egypt through, or rather across the Red Sea, through the wilderness on toward the promised land. And in spite of its magnificence, I wouldn't stop there. I would move on by Greece and take my mind to Mount Olympus. And I would see Plato, Aristotle, Socrates, Euripides and Aristophanes assembled around the Parthenon. And I would watch them around the Parthenon as they discussed the great and eternal issues of reality. But I wouldn't stop there. I would go on, even to the great heyday of the Roman Empire. And I would see developments around there, through various emperors and leaders. But I wouldn't stop there. I would even come up to the day of the Renaissance, and get a quick picture of all that the Renaissance did for the cultural and aesthetic life of man. But I wouldn't stop there. I would even go by the way that the man for whom I am named had his habitat. And I would watch Martin Luther as he tacked his ninety-five theses on the door at the church of Wittenberg. But I wouldn't stop there. I would come on up even to 1863, and watch a vacillating President by the name of Abraham Lincoln finally come to the conclusion that he had to sign the Emancipation Proclamation. But I wouldn't stop there. I would even come up to the early thirties, and see a man grappling with the problems of the bankruptcy of his nation. And come with an eloquent cry that we have nothing to fear but "fear itself." But I wouldn't stop there.”

“Ik raakte ervan overtuigd dat niet meewerken aan een slechte zaak net zo goed een morele verplichting inhoudt als meewerken aan iets goeds.”

“One has not only a legal but a moral responsibility to obey just laws. Conversely, one has a moral responsibility to disobey unjust laws. I would agree with St. Augustine that ' an unjust law is no law at all.”

“There are two types of laws, those that are just and those that are unjust. A just law is a man-made code that squares with the moral law. An unjust law is a code that is out of harmony with the moral law...Any law that uplifts the human personality is just. Any law that degrades human personality is unjust. All segregation statutes are unjust because segregation distorts the soul and damages the personality.”

“All progress is precarious, and the solution of one problem brings us face to face with another problem.”

“Through our scientific and technological genius we've made of this world a neighborhood. And now through our moral and ethical commitment we must make of it a brotherhood. We must all learn to live together as brothers—or we will all perish together as fools.”

“True peace is not merely the absence of tension: it is the presence of justice.”

“Any religion that professes to be concerned with the souls of men and is not concerned with the slums that damn them, the economic conditions that strangle them and the social conditions that cripple them is a dry-as-dust religion.”