“The United States is in sore need today of an aristocracy of intellect and service. Because such an aristocracy does not exist in the popular consciousness, we are bending the knee to the golden calf of money. The form of monarchy and its pomp offer a valuable foil to the worship of money for its own sake. A democracy must provide itself with a foil of its own and none is better or more effective than an aristocracy of intellect and service.”

XVIII, p. 483. Usually misquoted as "Democracy…while it lasts is more bloody than either aristocracy or monarchy".
1810s, Letters to John Taylor (1814)

Section III, "Of Civil Liberty"
Essay on the First Principles of Government, 2nd Edition (1771)

“What is liberal education,” pp. 4-5
Liberalism Ancient and Modern (1968)
Context: It was once said that democracy is the regime that stands or falls by virtue: a democracy is a regime in which all or most adults are men of virtue, and since virtue seems to require wisdom, a regime in which all or most adults are virtuous and wise, or the society in which all or most adults have developed their reason to a high degree, or the rational society. Democracy, in a word, is meant to be an aristocracy which has broadened into a universal aristocracy. … There exists a whole science—the science which I among thousands of others profess to teach, political science—which so to speak has no other theme than the contrast between the original conception of democracy, or what one may call the ideal of democracy, and democracy as it is. … Liberal education is the ladder by which we try to ascend from mass democracy to democracy as originally meant.

1963, Address at Vanderbilt University

Source: Principles to Form the Basis of the Administration of the Republic (February 1794)

Source: (1776), Book IV, Chapter I, p. 471.

Napoleon : In His Own Words (1916)

222
1940s–present, Minority Report : H.L. Mencken's Notebooks (1956)
Source: Minority Report

1930s, Die verfluchten Hakenkreuzler. Etwas zum Nachdenken (1932)