“Knowledge both enlarges and multiplies our Desires, and the fewer things a Man wishes for, the more easily his Necessities may be supply'd.”

“The Pochade Box”, p. 318
The Ivory and the Horn (1996)

Interlude: West's Disease", p. 245
The Dyer's Hand, and Other Essays (1962)

Rabbit at Rest (1990)

Source: J. Steur, Netherlands. Volume 63 Article from 1959. Quoted from J. Vuylsteke, "Flemish Belgium since 1830: Studies and sketches collected by the general board of the Willemsfonds on the occasion of the Jubilee Year 1905", Willemsfonds, 1905, p. 222. https://www.dbnl.org/tekst/_nee003195901_01/_nee003195901_01_0114.php King Leopold II and the Queen are invited by the mayor of Brussels, Karel Buls, to attend the first performance in the renovated Flemish theatre, where he gives a speech in Flemish. This was followed by thunderous applause such as 'Long live our Flemish King!'

Source: The Audacity of Hope: Thoughts on Reclaiming the American Dream

Two Precepts of Charity (1273)
Sermons on the Ten Commandments (Collationes in decem praeceptes, c. 1273), Prologue (opening sentence)
Variant translation: Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do.
Original: (la) Tria sunt homini necessaria ad salutem: scilicit scientia credendorum, scientia desiderandorum, et scientia operandorum.

Though widely cited as Occam's razor, this popular wording is not found in his extant works.
Misattributed

English and Welsh (1955)

Source: What is Property? (1840), Ch. V: "Psychological Explanation of the Idea of Justice and Injustice, and the Determination of the Principle of Government and of Right," Part 2: Characteristics of Communism and of Property
Context: Communism is inequality, but not as property is. Property is the exploitation of the weak by the strong. Communism is the exploitation of the strong by the weak. In property, inequality of conditions is the result of force, under whatever name it be disguised: physical and mental force; force of events, chance, fortune; force of accumulated property, &c. In communism, inequality springs from placing mediocrity on a level with excellence. This damaging equation is repellent to the conscience, and causes merit to complain; for, although it may be the duty of the strong to aid the weak, they prefer to do it out of generosity, — they never will endure a comparison. Give them equal opportunities of labor, and equal wages, but never allow their jealousy to be awakened by mutual suspicion of unfaithfulness in the performance of the common task.
Communism is oppression and slavery. Man is very willing to obey the law of duty, serve his country, and oblige his friends; but he wishes to labor when he pleases, where he pleases, and as much as he pleases. He wishes to dispose of his own time, to be governed only by necessity, to choose his friendships, his recreation, and his discipline; to act from judgment, not by command; to sacrifice himself through selfishness, not through servile obligation. Communism is essentially opposed to the free exercise of our faculties, to our noblest desires, to our deepest feelings. Any plan which could be devised for reconciling it with the demands of the individual reason and will would end only in changing the thing while preserving the name. Now, if we are honest truth-seekers, we shall avoid disputes about words.
Thus, communism violates the sovereignty of the conscience, and equality: the first, by restricting spontaneity of mind and heart, and freedom of thought and action; the second, by placing labor and laziness, skill and stupidity, and even vice and virtue on an equality in point of comfort. For the rest, if property is impossible on account of the desire to accumulate, communism would soon become so through the desire to shirk.