“Human decency is not derived from religion. It precedes it.”

Chpt.2, p. 18
Principles of Geology (1832), Vol. 1

Part III : Selection on Education from Kant's other Writings, Ch. I Pedagogical Fragments, # 14
The Educational Theory of Immanuel Kant (1904)
Context: Character means that the person derives his rules of conduct from himself and from the dignity of humanity. Character is the common ruling principle in man in the use of his talents and attributes. Thus it is the nature of his will, and is good or bad. A man who acts without settled principles, with no uniformity, has no character. A man may have a good heart and yet no character, because he is dependent upon impulses and does not act according to maxims. Firmness and unity of principle are essential to character.

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.

Source: The Golden Bough (1890), Chapter 3, Sympathetic Magic.

Source: King Dork

Source: Biographia Literaria (1817), Ch. XVII

Source: "Quotes", The Great Code: The Bible and Literature (1982), Chapter Six, p. 168

Source: The New Dietetics, What to Eat and How: A Guide to Scientific Feeding in Health and Disease, Battle Creek, MI: The Modern Medicine Publishing Co., 1921, p. 366 https://books.google.it/books?id=TNsMAwAAQBAJ&pg=PA366.