“It is the duty of every government to give protection to its citizens, of whatever class, color, or condition, and especially to those who are duly organized as soldiers in the public service. The law of nations and the usages and customs of war as carried on by civilized powers, permit no distinction as to color in the treatment of prisoners of war as public enemies. To sell or enslave any captured person, on account of his color, and for no offence against the laws of war, is a relapse into barbarism and a crime against the civilization of the age.”

1890s, Plessy v. Ferguson (1896)
Context: In view of the constitution, in the eye of the law, there is in this country no superior, dominant, ruling class of citizens. There is no caste here. Our Constitution is color-blind, and neither knows nor tolerates classes among citizens. In respect of civil rights, all citizens are equal before the law. The humblest is the peer of the most powerful. The law regards man as man, and takes no account of his surroundings or of his color when his civil rights as guaranteed by the supreme law of the land are involved.

Source: Never Again: Securing America and Restoring Justice (2006), p. 181

1920s, First State of the Union Address (1923)

Source: Writings, The Institutes of Biblical Law (1973), p. 93

I Ain't Got Time To Bleed (1999)
Context: War isn't civilized. War is failure. It's the ultimate result of a breakdown in public policy, and soldiers are the machines that handle that breakdown. In warfare, you're taught to do whatever you have to, to stay alive.

1860s, Reconstruction (1866)

Source: The Other America (1962), p. 71
Context: The laws against color can be removed, but that will leave the poverty that is the historic and institutionalized consequence of color. As long as this is the case, being born Negro will continue to be the most profound disability that the United States imposes upon a citizen.

The Question of Liberty in America
About California's 1978 Proposition 13 which limits tax increases without public approval
1970s

1920s, Letter to Charles F. Gardner (1924)
Context: Leaving out of consideration the manifest impropriety of the President intruding himself in a local contest for nomination, I was amazed to receive such a letter. During the war 500,000 colored men and boys were called up under the draft, not one of whom sought to evade it. They took their places wherever assigned in defense of the nation of which they are just as truly citizens as are any others. The suggestion of denying any measure of their full political rights to such a great group of our population as the colored people is one which, however it might be received in some other quarters, could not possibly be permitted by one who feels a responsibility for living up to the traditions and maintaining the principles of the Republican Party. Our Constitution guarantees equal rights to all our citizens, without discrimination on account of race or color. I have taken my oath to support that Constitution. It is the source of your rights and my rights. I propose to regard it, and administer it, as the source of the rights of all the people, whatever their belief or race.