Immediate quotes

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F_Terry_Baker

Code Library

“The most important of these is a development support library which encourages the visibility and manageability of the product, as well as reduces clerical effort on the part of the programmers. The library is typically maintained and operated by a programming librarian who serves to control the programming assets and to provide the necessary services for both programmers and management. As a result of its use, the entire project is maintained in a centralized, up-to-date, visible form which makes its status immediately apparent to code-competent software managers and makes it possible for programmers to answer their questions directly without relying on others.”
  • Source: Baker, F. T. (1975). Software Management Through Improved Programming Technology. ACM ’75: Proceedings of the 1975 Annual Conference, 286–287. https://doi.org/10.1145/800181.810346

Claude_Bernard

Counterproof

“Experimenters, who see their ideas confirmed by an experiment, should still doubt and require a counterproof. Indeed, proof that a given condition always precedes or accompanies a phenomenon does not warrant concluding with certainty that a given condition is the immediate cause of that phenomenon.”
  • Source: From the book "An Introduction to the Study of Experimental Medicine" written by Claude Bernard published in French in 1865 as "Introduction à l'étude de la médecine expérimentale". Translated to English by Henry Copley Greene in 1927 and republished by Henry Shuman, Inc. in 1949. Chapter II, page 55. Available online at https://archive.org/details/b21270557 retrieved 2024.

Richard_Feynman

Cargo Cult

“...there have been many experiments running rats through all kinds of mazes, and so on — with little clear result. But in 1937 a man named Young did a very interesting one. He had a long corridor with doors all along one side where the rats came in, and doors along the other side where the food was. He wanted to see if he could train rats to go to the third door down from wherever he started them off. No. The rats went immediately to the door where the food had been the time before. The question was, how did the rats know, because the corridor was so beautifully built and so uniform, that this was the same door as before? Obviously there was something about the door that was different from the other doors. So he painted the doors very carefully, arranging the textures on the faces of the doors exactly the same. Still the rats could tell. Then he thought maybe they were smelling the food, so he used chemicals to change the smell after each run. Still the rats could tell. Then he realized the rats might be able to tell by seeing the lights and the arrangement in the laboratory like any commonsense person. So he covered the corridor, and still the rats could tell. He finally found that they could tell by the way the floor sounded when they ran over it. And he could only fix that by putting his corridor in sand. So he covered one after another of all possible clues and finally was able to fool the rats so that they had to learn to go to the third door. If he relaxed any of his conditions, the rats could tell. Now, from a scientific standpoint, that is an A-number-one experiment. That is the experiment that makes rat-running experiments sensible, because it uncovers the clues that the rat is really using — not what you think it's using. And that is the experiment that tells exactly what conditions you have to use in order to be careful and control everything in an experiment with rat-running. I looked into the subsequent history of this research. The next experiment, and the one after that, never referred to Mr. Young. They never used any of his criteria of putting the corridor on sand, or of being very careful. They just went right on running rats in the same old way, and paid no attention to the great discoveries of Mr. Young, and his papers are not referred to, because he didn't discover anything about rats. In fact, he discovered all the things you have to do to discover something about rats. But not paying attention to experiments like that is a characteristic of cargo cult science.”
  • Source: "Cargo Cult Science", adapted from a 1974 Caltech commencement address; also published in Surely You're Joking, Mr. Feynman!, p. 345.
    • Feynman, R. P. (1974). In Feynman, R. P. (1974, June). Cargo Cult Science. Science and Engineering.

Arthur_Bloch

Finagle's Third Law

“In any collection of data, the figure most obviously correct, beyond all need of checking, is the mistake.
Corollaries:
1. No one whom you ask for help will see it.
2. Everyone who stops by with unsought advice will see it immediately.”
  • Source: Attributed to a fictional character named Finagle, reported in the book "Murphy's Law and Other Reasons Why Things Go Wrong" written by Arthur Bloch, first edition published in 1977 by Price/Stern/Sloan, Los Angeles, California. ISBN-10: 0843104287. ISBN-13: 978-0843104288. Chapter Murphology, page 15.

David_Epstein

Haiku

“Haiku, the three-line poem made by alternating lines of five, seven, and five syllables... in the seventeenth century, a student of Zen named Matsuo Bashō... made it into its own serious form, imbued with Zen principles. Not only were the words spare, but the ethos was as well... It prompted poets to pause and look mindfully at the world around them... This minuscule problem space is known around the world for its ability to turn anyone, from kindergartener to adult, into a probing wordsmith in an instant. Look around you; try it. The form's scarcity will immediately ignite an exploration of new linguistic possibilities in your mind.”
  • Source: David Epstein in the book “Inside the Box: How Constraints Make Us Better”. Published 2026 by Riverhead Books. Page 68. ISBN 978-0593715734 (Ebook).

George_Miller

Immediate Memory

“Everybody knows that there is a finite span of immediate memory and that for a lot of different kinds of test materials this span is about seven items in length.”
  • Source: George A. Miller in the article ‘The Magical Number Seven, Plus or Minus Two: Some Limits on our Capacity for Processing Information’. Psychological Review, 63, 81-97. Also online at https://psychclassics.yorku.ca/Miller/ .

Frank_H_T_Rhodes

Kettle Boiling

“It is not a question of choosing one and thereby rejecting the other; both are necessary in order to do justice to the totality... This is perhaps simply shown by Dr Douglas Spanner's example of the boiling kettle. Why, I may ask, is the kettle boiling? There are two kinds of answer that can be given. One is, it is boiling because energy is being supplied to it in the form of heat and the maximum vapour pressure of the water is now equal to the atmospheric pressure. The other kind of answer which may be given is that the kettle is boiling because I put it on to make a cup of tea. Now these are different answers, the first in terms of immediate causes and the second in terms of ultimate cause. But both are true, both are complementary and not competitive. One answer is appropriate within a particular frame of reference, the other within another frame of reference. There is a sense in which each is incomplete without the other.”
  • Source: Frank H. T. Rhodes in the essay “Christianity in a Mechanistic Universe”, included in the book “Christianity in a Mechanistic Universe and Other Essays” edited by Donald M. MacKay, published by Inter-Varsity Press, Chicago, Illinois, in 1965.

Alfred_Wegener

Continental Drift

“The first concept of continental drift first came to me as far back as 1910, when considering the map of the world, under the direct impression produced by the congruence of the coast lines on either side of the Atlantic. At first I did not pay attention to the ideas because I regarded it as improbable. In the fall of 1911, I came quite accidentally upon a synoptic report in which I learned for the first time of palaeontological evidence for a former land bridge between Brazil and Africa. As a result I undertook a cursory examination of relevant research in the fields of geology and palaeontology, and this provided immediately such weighty corroboration that a conviction of the fundamental soundness of the idea took root in my mind.”
  • Source: Alfred L. Wegener, In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 1.

Gerald_Weinberg

Amateur and Professional Programmers

“The amateur... is looking for a way to get the job done. If he runs into difficulty, all he wants is to surmount it — the manner of doing so is of little consequence. Not so, however, for the professional. She may well be aware of numerous ways of circumnavigating the problem at hand. She may even employ one of them for the immediate purpose of getting the job done. But her work does not stop there; it begins there. It begins because she must understand why she did not understand, in order that she may prepare herself for the programs she may someday write which will require that understanding. The amateur, then, is learning about his problem... The professional, conversely, is learning about her profession — programming — and the problem being programmed is only one incidental step in her process of development.”
  • Source: Chapter 7. Weinberg, G. M. (2011). The Psychology of Computer Programming (Silver anniversary edition) | 1971. Weinberg & Weinberg.

Shoshana_Zuboff

Authority is the Spiritual Dimension of Power

“Authority is the spiritual dimension of power because it depends upon faith in a system of meaning that decrees the necessity of the hierarchical order and so provides for the unity of imperative control. Authority requires collective participation in a system of meaning that extends beyond the immediate context, beyond those who command or obey, and reaches into the domain of transcendent values. Members of a hierarchical order are linked together through allegiance to or faith in a common belief system, and every action that ensures the smooth exercise of imperative control refers back to, and expresses the bonds one has with, some fundamental source of meaning.”
  • Source: Zuboff, S. (1988). In The Age Of The Smart Machine: The Future Of Work And Power. New York, NY: Basic Books, p. 222. ISBN:0465032125.