“There are two main human sins from which all the others derive: impatience and indolence.”
3 (20 October 1917); as published in The Blue Octavo Notebooks (1954); also in Dearest Father: Stories and Other Writings (1954); variant translations use "cardinal sins" instead of "main human sins" and "laziness" instead of "indolence".
The Zürau Aphorisms (1917 - 1918)
Context: There are two main human sins from which all the others derive: impatience and indolence. It was because of impatience that they were expelled from Paradise; it is because of indolence that they do not return. Yet perhaps there is only one major sin: impatience. Because of impatience they were expelled, because of impatience they do not return.
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Franz Kafka 266
author 1883–1924Related quotes

3 (20 October 1917); as published in The Blue Octavo Notebooks (1954); also in Dearest Father: Stories and Other Writings (1954); variant translations use "cardinal sins" instead of "main human sins" and "laziness" instead of "indolence".
The Zürau Aphorisms (1917 - 1918)
Context: There are two main human sins from which all the others derive: impatience and indolence. It was because of impatience that they were expelled from Paradise; it is because of indolence that they do not return. Yet perhaps there is only one major sin: impatience. Because of impatience they were expelled, because of impatience they do not return.

King v. Burdett (1820), 1 St. Tr. (N. S.) 140.

A Writer's Diary, Volume 1: 1873-1876 (1994), p. 734 http://books.google.com.br/books?id=38xQHS4h0yEC&printsec=frontcover&hl=pt-BR&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false

Charles Fourier: The Visionary and His World, J. Beecher (1986), p. 315
New Amorous World
But it was inevitable that Auden should arrive at this point. His anxiety is fundamental; and the one thing that anxiety cannot do is to accept itself, to do nothing about itself — consequently it admires more than anything else in the world doing nothing, sitting still, waiting.
“Freud to Paul: The Stages of Auden’s Ideology”, p. 180
The Third Book of Criticism (1969)

37 min 45 sec
Cosmos: A Personal Voyage (1990 Update), The Backbone of Night [Episode 7]
Context: There can be an infinite number of polygons, but only five regular solids. Four of the solids were associated with earth, fire, air and water. The cube for example represented earth. These four elements, they thought, make up terrestrial matter. So the fifth solid they mystically associated with the Cosmos. Perhaps it was the substance of the heavens. This fifth solid was called the dodecahedron. Its faces are pentagons, twelve of them. Knowledge of the dodecahedron was considered too dangerous for the public. Ordinary people were to be kept ignorant of the dodecahedron. In love with whole numbers, the Pythagoreans believed that all things could be derived from them. Certainly all other numbers.
So a crisis in doctrine occurred when they discovered that the square root of two was irrational. That is: the square root of two could not be represented as the ratio of two whole numbers, no matter how big they were. "Irrational" originally meant only that. That you can't express a number as a ratio. But for the Pythagoreans it came to mean something else, something threatening, a hint that their world view might not make sense, the other meaning of "irrational".

in Aquinas: Selected Political Writings (Basil Blackwell: 1974), p. 183
Commentary on the Sentences of Peter Lombard