“Courtesy, modesty, good manners, conformity to definite ethical standards are universal, but what constitutes courtesy, modesty, good manners, and definite ethical standards is not universal. It is instructive to know that standards differ in the most unexpected ways”

As quoted in Albert Schweitzer : The Man and His Mind (1947) by George Seaver, p. 366<!-- also in Come to Judgment (1980) by Alden Whitman, p. 5 -->

A business of high principle generates greater drive and effectiveness because people know they can do the right thing decisively and with confidence. ...
A business of high principle attracts high-caliber people more easily, thereby gaining a basic competitive and profit edge. ...
A business of high principle develops better and more profitable relations with customers, competitors, and the general public, because it can be counted on to do the right thing at all times. By the consistently ethical character of its actions, it builds a favorable image.
Source: The Will to Manage (1966), p. 26

The Burden (1956)

Letters, "Biko Revisited", SAMJ, Volume 80, July 20, 1991, p. 107.

Kantian Ethics (2008)

[…] Let us then take the whole universe as our standard of constancy, and adopt the view of a cosmic being whose body is composed of intergalactic spaces and swells as they swell. Or rather we must now say it keeps the same size, for he will not admit that it is he who has changed. Watching us for a few thousand million years, he sees us shrinking; atoms, animals, planets, even the galaxies, all shrink alike; only the intergalactic spaces remain the same. The earth spirals round the sun in an ever&#8209;decreasing orbit. It would be absurd to treat its changing revolution as a constant unit of time. The cosmic being will naturally relate his units of length and time so that the velocity of light remains constant. Our years will then decrease in geometrical progression in the cosmic scale of time. On that scale man's life is becoming briefer; his threescore years and ten are an ever&#8209;decreasing allowance. Owing to the property of geometrical progressions an infinite number of our years will add up to a finite cosmic time; so that what we should call the end of eternity is an ordinary finite date in the cosmic calendar. But on that date the universe has expanded to infinity in our reckoning, and we have shrunk to nothing in the reckoning of the cosmic being.
We walk the stage of life, performers of a drama for the benefit of the cosmic spectator. As the scenes proceed he notices that the actors are growing smaller and the action quicker. When the last act opens the curtain rises on midget actors rushing through their parts at frantic speed. Smaller and smaller. Faster and faster. One last microscopic blurr of intense agitation. And then nothing.

pp. 90–92 https://books.google.co.uk/books?id=KHyV4-2EyrUC&pg=PA90
The Expanding Universe (1933)

Source: The Last Messiah (1933), To Be a Human Being https://www.youtube.com/watch?v=u4m6vvaY-Wo&t=1110s (1989–90)

Source: Quality Control: Principles, Practice, and Administration. 1951, p. 1

Remarks at the University of Texas at Austin (22 February 1991), as cited in Let me tell you what I've learned https://en.wikiquote.org/wiki/Special:BookSources/0292787901: Texas Wisewomen Speak, PJ Pierce, University of Texas Press (2010), p. 17