“And here one may note a curious comparison which can be made between this [ascidian] life-history and that of many a respectable pinnacle and gargoyle on the social fabric. Every respectable citizen of the professional classes passes through a period of activity and imagination, of "liveliness and eccentricity," of "Sturm und Drang." He shocks his aunts. Presently, however, he realizes the sober aspect of things. He becomes dull; he enters a profession; suckers appear on his head; and he studies. Finally, by virtue of these he settles down—he marries. All his wild ambitions and subtle æsthetic perceptions atrophy as needless in the presence of calm domesticity. He secretes a house, or "establishment," round himself, of inorganic and servile material. His Bohemian tail is discarded. Henceforth his life is a passive receptivity to what chance and the drift of his profession bring along; he lives an almost entirely vegetative excrescence on the side of a street, and in the tranquillity of his calling finds that colourless contentment that replaces happiness.”

Section IX, "Man Alone with Himself" / aphorism 513
Human, All Too Human (1878), Helen Zimmern translation

Source: The Analects, Other chapters

Now this is very different in the case of men, for theirs is a double nature mixed up in one, that of soul and body; the former divine, the latter full of darkness and obscurity: hence naturally arise warfare and discord between the two.
Upon the Sovereign Sun (362)

Source: The Bourgeois: Catholicism vs. Capitalism in Eighteenth-Century France (1927), p. 25

His lecture on leadership quoted in "Field Marshal KM Kariappa Memorial Lectures, 1995-2000", page=28

Part 1.3 Rights of Man
1790s, Rights of Man, Part I (1791)

Source: Escape from Freedom (1941), Ch. 7, p. 262-3

Some Hope, Chapter 1

Source: The Doctrine of the Mean