Our scientific power has outrun our spiritual power. We have guided missiles and misguided men.
We must learn to live together as brothers or perish together as fools.
Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that.
When we let freedom ring, when we let it ring from every village and every hamlet, from every state and every city, we will be able to speed up that day when all of God’s children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing in the words of the old Negro spiritual, ‘Free at last! Free at last! Thank God Almighty, we are free at last!’
Means we use must be as pure as the ends we seek.
Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.
Injustice anywhere is a threat to justice everywhere.