“Throughout our history - and that of the world - it's always come down to the friction between the haves and have-nots or between the average Joes and the large corporations. So that's a recurring theme in my work.”

The Glass Bead Game (1943)
Context: To be capable of everything and do justice to everything, one certainly does not need less spiritual force and èlan and warmth, but more. What you call passion is not spiritual force, but friction between the soul and the outside world. Where passion dominates, that does not signify the presence of greater desire and ambition, but rather the misdirection of these qualities toward an isolated and false goal, with a consequent tension and sultriness in the atmosphere. Those who direct the maximum force of their desires toward the center, toward true being, toward perfection, seem quieter than the passionate souls because the flame of their fervor cannot always be seen.

Twenty Years of Mr. Justice Holmes' Constitutional Opinions, 36 HARV. L. REV. 909, 931 (1923).
Other writings

Source: Don Quixote de la Mancha (1605–1615), Part II (1615), Book III, Ch. 20.

Tom Minchin. Anthony Watts interviewed http://quadrant.org.au/opinion/doomed-planet/2010/06/anthony-watts-interviewed/, Quadrant magazine, June 30, 2010.
2010

Seventh and Last Joint Debate with Steven Douglas, at Alton, Illinois (15 October 1858)
1850s, Lincoln–Douglas debates (1858)
Context: Now, I have upon all occasions declared as strongly as Judge Douglas against the disposition to interfere with the existing institution of slavery. You hear me read it from the same speech from which he takes garbled extracts for the purpose of proving upon me a disposition to interfere with the institution of slavery, and establish a perfect social and political equality between negroes and white people. Allow me while upon this subject briefly to present one other extract from a speech of mine, more than a year ago, at Springfield, in discussing this very same question, soon after Judge Douglas took his ground that negroes were not included in the Declaration of Independence: I think the authors of that notable instrument intended to include all men, but they did not mean to declare all men equal in all respects. They did not mean to say all men were equal in color, size, intellect, moral development, or social capacity. They defined with tolerable distinctness in what they did consider all men created equal — equal in "certain inalienable rights, among which are life, liberty, and the pursuit of happiness." This they said, and this they meant. They did not mean to assert the obvious untruth that all were then actually enjoying that equality, or yet that they were about to confer it immediately upon them. In fact, they had no power to confer such a boon. They meant simply to declare the right, so that the enforcement of it might follow as fast as circumstances should permit. They meant to set up a standard maxim for free society which should be familiar to all, constantly looked to, constantly labored for, and even, though never perfectly attained, constantly approximated, and thereby constantly spreading and deepening its influence, and augmenting the happiness and value of life to all people, of all colors, everywhere... That is the real issue. That is the issue that will continue in this country when these poor tongues of Judge Douglas and myself shall be silent. It is the eternal struggle between these two principles — right and wrong — throughout the world. They are the two principles that have stood face to face from the beginning of time; and will ever continue to struggle. The one is the common right of humanity, and the other the divine right of kings. It is the same principle in whatever shape it develops itself. It is the same spirit that says, "You toil and work and earn bread, and I'll eat it." No matter in what shape it comes, whether from the mouth of a king who seeks to bestride the people of his own nation and live by the fruit of their labor, or from one race of men as an apology for enslaving another race, it is the same tyrannical principle.

"The Silent Warrior", p. 114
The Soul of a Butterfly (2004)

Source: Flash Boys (2014), p. 69

On skiing; quoted in [John E. McNamara, Remembering Alan's Humor, 2006, http://lists.w3.org/Archives/Public/public-memoria/2006Jun/0009.html, 2006-12-26]