No people in the world ever did achieve their freedom by goody-goody talk and moral suasion: it being immutable law that all revolutions that will succeed must being in blood, whatever may answer afterward.
- A Connecticut Yankee in King Arthur's Court

I am said to be a revolutionist in my sympathies, by birth, by breeding and by principle. I am always on the side of the revolutionists, because there never was a revolution unless there were some oppressive and intolerable conditions against which to revolute.
- quoted in New York Tribune, April 15, 1906, p. 2 (in defense of Maxim Gorky)