Different quotes

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Isaac_Asimov

Science and Art

“There is an art to science, and science in art; the two are not enemies, but different aspects of the whole.”
  • Source: Isaac Asimov, chapter epigraph in Isaac Asimov’s Book of Science and Nature Quotations, edited by Isaac Asimov and Jason A. Shulman, published in 1988 by Weidenfeld and Nicolson, New York. Chapter 65, page 251. ISBN 1-555-84111-2.

William_Ian_Beardmore_Beveridge

Clues and Evidence

“While playing the part of the detective the investigator follows clues, but having captured his alleged fact, he turns judge and examines the case by means of logically arranged evidence. Both functions are equally essential but they are different.”
  • Source: W. I. B. Beveridge in his book ‘In The Art of Scientific Investigation’ published in 1950 and 1957, page 92.

Fred_Brooks

Software Complexity

“Einstein repeatedly argued that there must be simplified explanations of nature, because God is not capricious or arbitrary. No such faith comforts the software engineer. Much of the complexity he must master is arbitrary complexity, forced without rhyme or reason by the many human institutions and systems to which his interfaces must conform. These differ from interface to interface, and from time to time, not because of necessity but only because they were designed by different people, rather than by God.”
  • Source: Brooks Jr., F. P. (1995). The Mythical Man-Month - Essays on Software Engineering (Anniversary Edition) | 1975/1995 (Anniv.). Boston. MA: Addison-Wesley. ISBN: 0201835959. Chapter 16, page 184.

Octavia_E_Butler

Different Ones

“Humans persecute their different ones, yet they need them to give themselves definition and status.”
  • Source: Written by Octavia E. Butler in her story entitled “Adulthood Rites”. Part II. Chapter 4. Written 1988. Published in the compilation book entitled “Lilith's Brood”. Compiled by Octavia E. Butler. Published by Grand Central Publishing, New York, NY in 1989. ISBN-10: 0-446-67610-1.

David_Epstein

Yourself Yesterday

“Compare yourself to yourself yesterday, not to younger people who aren’t you. Everyone progresses at a different rate, so don’t let anyone else make you feel behind. You probably don’t even know where exactly you’re going, so feeling behind doesn’t help.”
  • Source: David Epstein in the book “Range: Why Generalists Triumph in a Specialized World”. Published 2019 by Riverhead Books. Conclusion, page 290. ISBN 978-0735214484.

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.

Kurt_Gödel

Other Worlds

“There are other worlds and rational beings of a different and higher kind. The world in which we live is not the only one in which we shall live or have lived.”
  • Source: As quoted in ‘A Logical Journey: From Gödel to Philosophy’ (1996) by Hao Wang, page 316.

Douglas_Hofstadter

Strange Consciousness

“My belief is that the explanations of emergent phenomena in our brains — for instance, ideas, hopes, images, analogies, and finally consciousness and free will — are based on a kind of Strange Loop, an interaction between levels in which the top loop reaches back down towards the bottom level and influences it, while at the same time being itself determined by the bottom level. In other words, a self-reinforcing resonance between different levels.”
  • Source: Hofstadter, Douglas R. (1979). Gödel, Escher, Bach: an Eternal Golden Braid. Written by Douglas R. Hofstadter. Basic Books, New York, NY. ISBN 13: 978-046502656-2. ISBN 10: 046502656-7. Chapter 20. Page 709.

Grace_Hopper

Never Take First No

“Never, never, never take the first no. There are a certain number of people in business, industry, and government who always say no the first time you suggest something new, because they're lazy. And if they say yes, they're going to have to do something about it. But there's another group, they are even more dangerous in a way, who always say no the first time you say something new or different because they want to see if you believe in it enough to come back and ask again. So never take the first no. Always go back and ask again. As a matter of fact, I take about four no's and then I figure out how to get around the guy, but that technique comes with age. I ran into one of these guys... I noticed he always said no to things the first time. So the next time I went in to suggest something I said ‘let's pretend this is the second time I'm presenting this’. I said, ‘you always say no the first time’. And he looked at me with the funniest expression. I had him over the barrel from then on because I'd just go and say, ‘this is the fourth time I'm requesting this, let's just say yes now’. So never, never, never take the first no on a new concept. It's terribly important that we listen to our youngsters.”
  • Source: Grace Hopper in a lecture delivered 1982-08-19 at the NSA (National Security Agency). Video available at YouTube as “NSA Releases Internal 1982 Lecture by Computing Pioneer Rear Admiral Grace Hopper”, channel The Black Vault Originals, online at <https://youtu.be/_bP14OzIJWI?si=wcUTl04b4p4scY6k>, posted 2024-08, retrieved 2024-08. Quote in video at 26:28.

Sabine_Hossenfelder

Closer Reality

“The foundations of physics give us a closer look at reality, but the closer we look at reality, the more slippery it becomes. Our heavy use of mathematics is a major reason. The more the fundamental descriptions of nature have become divorced from our everyday experience, the more we must rely on mathematical rigor. This reliance has consequences. Using math to describe reality means that the same observations can be equivalently explained in many different ways. That’s just because there are many sets of mathematical axioms that will give the exact same predictions for all available data. Thus, if you want to assign 'reality' to one of your explanations, you won’t know which.”
  • Source: Hossenfelder, Sabine. Existential Physics: A Scientist's Guide to Life's Biggest Questions (p. 74). Penguin Publishing Group. Kindle Edition.

Steve_Jobs

Misfits

“Here's to the crazy ones. The misfits. The rebels. The troublemakers. The round pegs in the square holes. The ones who see things differently. They're not fond of rules. And they have no respect for the status quo. You can quote them, disagree with them, glorify or vilify them. About the only thing you can't do is ignore them. Because they change things. They push the human race forward. And while some may see them as the crazy ones, we see genius. Because the people who are crazy enough to think they can change the world, are the ones who do.”
  • Source: Steve Jobs in “Motivating Thoughts of Steve Jobs”, published by Prabhat Prakashan in 2020. ISBN: 9789351869191.

David_Kipping

Nature Computation

“It is important to distinguish between testing whether the universe is built upon the principles of computation but is not a simulation versus testing where the universe is indeed a simulation on someone's computer. Those are different to each other. It is quite possible that the laws of computation are somehow embedded within nature and yet everything we see around us is not a simulation.”
  • Source: David Kipping from the YouTube “Why You're Probably Not a Simulation”, posted 2020-09-04 in the channel ‘Cool Worlds’. Video offset 11:15. Online at https://youtu.be/HA5YuwvJkpQ (2025).

Parent Reality Different

“If we concede that the possibility that our observations and understanding of physics may in fact be simulated... our knowledge of physics is wholly local to the simulation and may have no real bearing on the constraints that affect a parent reality, whose rules and limitations may be entirely different.”
  • Source: David Kipping from the paper “A Bayesian Approach to the Simulation Argument”, published 2020 in the journal ‘Universe’, volume 6, issue 8. DOI:10.3390/universe6080109. Online at https://www.mdpi.com/2218-1997/6/8/109 (2025).

Robert_Lawrence_Kuhn

Scientific Method

“I like to distinguish between the scientific method, which is applied to all materialistic theories. The scientific method is one of observation or experimentation, repeatability, falsification, the repeatability by different techniques of different labs, or prediction and results. It's a scientific method. I say that if it's a non-physical theory, or the theory has any aspect of non-physicalism to it, it doesn't have to be all, any aspect invalidates, to some degree invalidates, the scientific method as I just described from being applicable. And I think there's a tendency in some theories that have some non-physical aspect to try to show their legitimacy by applying the scientific method... I think that's a false desire, because once you're non-physical you are invalidating, to one degree or another, the scientific method. Maybe not totally, but in some degree.”
  • Source: Kuhn, Robert Lawrence. Within the YouTube video “All 325+ Competing Consciousness Theories In One Video” on the Essentia Foundation channel, https://youtu.be/h5G6Oc_V3Lw?si=jzabxeu55GvABDFs, published 2025-08-22, video offset at 1:32:25.

Pim_van_Lommel

Materialist Science

“In materialist science, only that is true that you can objectify, what you can measure, what you can duplicate, or what you can falsify. Then it is true. Now what you feel and what you think, your consciousness, you cannot objectify, you cannot duplicate, you cannot measure, and you cannot falsify. Consciousness, the essence of who you are, what you feel, what you think, is beyond our current materialist science. So, they call it an illusion. But it is the essence of who we are. We have to expand science into post-materialist science. We have to change the paradigm to include subjective experiences... Science should include subjective experiences into the scientific method... The materialist aspect of science is still important, but it's not enough... This is a totally different approach when you realize that everything has its subjective aspects.”
  • Source: Words from Pim van Lommel in a video interview. From the YouTube video “Consciousness beyond death, with Dr. Pim van Lommel” on the Essentia Foundation channel. Posted 2023-07-23. Online at https://youtu.be/NVsBFOB7H44. Offset 46:19.

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.

Todd_Rose

Comparing Averages

“Averages have their place. If you’re comparing two different groups of people... as opposed to comparing two individuals from each of those groups — then the average can be useful.”
  • Source: From the book “The End of Average: How We Succeed in a World That Values Sameness”, written by Todd Rose, published 2016 by HarperCollins, Kindle Edition, page 11. ISBN: 978-0062358387 (e-book).

Rupert_Sheldrake

Evolutionary Randomness

“In neo-Darwinian evolutionary theory randomness plays a central role through the chance mutations of genes, which are quantum events. With different chance events, evolution would happen differently.”
  • Source: Rupert Sheldrake. The book “Science Set Free: 10 Paths to New Discovery”, Prologue, page 15. Published in 2012 by Crown Publishing, New York, NY. Kindle Edition. ISBN: 978-0-7704-3671-1.

Alfred_P_Sloan

Greatest Thrill

“The greatest real thrill that life offers is to create, to construct, to develop something useful. Too often we fail to recognize and pay tribute to the creative spirit. It is that spirit that creates our jobs. There has to be this pioneer, the individual who has the courage, the ambition to overcome the obstacles that always develop when one tries to do something worthwhile, especially when it is new and different.”

  • Source:
    • Alfred P. Sloan in his book “Adventures of a White-Collar Man”, published in 1941 by Doubleday Press, New York, NY. First edition. Also quoted in: John Bourne (2000), Learning Effectiveness and Faculty Satisfaction. p. 11.

Socrates

Right Opinion and Knowledge

“...right opinion and knowledge are different. There are few things that I should claim to know, but that at least is among them, whatever else is.”
  • Source: Socrates, as quoted by Plato in 'Meno', 98b (circa 402 BCE).

Frederick_Winslow_Taylor

Kindly Interest

“...in order to have any hope of obtaining the initiative of his workmen the manager must give some special incentive to his men beyond that which is given to the average of the trade. This incentive can be given in several different ways, as, for example, the hope of rapid promotion or advancement; higher wages, either in the form of generous piece-work prices or of a premium or bonus of some kind for good and rapid work; shorter hours of labor; better surroundings and working conditions than are ordinarily given, etc., and, above all, this special incentive should be accompanied by that personal consideration for, and friendly contact with, his workmen which comes only from a genuine and kindly interest in the welfare of those under him.”
  • Source: F.W. Taylor, 1911. Principles of Scientific Management. New York and London, Harper & brothers. Chapter 1.

Stephen_Wolfram

Quantum Computing

“The basic idea of quantum computing... is to do different computations in parallel along different possible threads of history. But the key issue is then how to corral those threads of history together to figure out a definite answer for the computation... The preliminary indication is that at least at a formal level, quantum computers aren’t going to come out ahead.”