“Here, then, is a revised version of Marshall's rules: (1) Figure out what you think about an issue, working back and forth among verbal intuition, evidence, and as much math as you need. (2) Stay with it till you are done. (3) Publish the intuition, the math, and the evidence - all three - in an economics journal. (4) But also try to find a way of expressing the idea without the formal apparatus. (5) If you can, publish that where it can do the world some good.”

— Paul Krugman

"Two Cheers for Formalism", The Economic Journal, Vol. 108, No. 451 (Nov., 1998)

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American economist 1953

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“I had a growing feeling in the later years of my work at the subject that a good mathematical theorem dealing with economic hypothesis was very well unlikely to be good economics: and I went more and more on the rules - (1) Use mathematics as shorthand language, rather than as an engine of inquiry. (2) Keep to them till you have done. (3) Translate into English. (4) Then illustrate by examples that are important in real life (5) Burn the mathematics. (6) If you can’t succeed in 4, burn 3. This last I do often.”

Alfred Marshall (1842–1924) British economist

Letter to A.L. Bowley, 27 February 1906, cited in: David L. Sills, Robert King Merton, Social Science Quotations: Who Said What, When, and Where http://books.google.com/books?id=WIKQbew5YKcC&pg=PA151 Transaction Publishers, 2000. p. 151.

“1. Find a subject you care about.
2. Do not ramble, though.
3. Keep it simple.
4. Have the guts to cut.
5. Sound like yourself.
6. Say what you mean to say.
7. Pity the readers.”

Kurt Vonnegut (1922–2007) American writer

As quoted in Science Fictionisms (1995), compiled by William Rotsler
Various interviews

“Think for yourself to decide 1) what you want, 2) what is true, and 3) what you should do to achieve #1 in light of #2 ... and do that with humility and open-mindedness so that you can consider the best thinking available to you.”

Ray Dalio (1949) American businessman

Ray Dalio, [Principles: Life and Work, https://books.google.com/books?id=6LGuDgAAQBAJ&pg=PR7, xi, 19 September 2017, Simon & Schuster, 978-1-5011-2405-1]
Principles: Life and Work (2017)

“(Engr. Abah Sule favorite speech)1. Give birth to yourself. 2. Others are feeling the same. 3. As a man you got to be strong. 4. Love the one you are with, 5. Where challenges are important, 6. to live is the hardest, to die is the simplest. 7. Peace of mind, long life, 8. Can't be done without you. 9. Do what's real. 10. Live the world and live your life.”

Engr.Abah Sule

“The four rules of writing… 1. Write to discover. 2. There is no greater discovery than love. 3. All love comes from the Creator. 4. Write what you will.”

Ted Dekker book Showdown

Source: Showdown

“We have a habit in writing articles published in scientific journals to make the work as finished as possible, to cover all the tracks, to not worry about the blind alleys or to describe how you had the wrong idea first, and so on. So there isn't any place to publish, in a dignified manner, what you actually did in order to get to do the work.”

Richard Feynman (1918–1988) American theoretical physicist

"The Development of the Space-Time View of Quantum Electrodynamics," Nobel Lecture http://nobelprize.org/physics/laureates/1965/feynman-lecture.html (11 December 1965)

“[GPL] version 3 was not a good "here we give you version 2" and then we try to sneak in this new rules and try force everyone to upgrade; that was the part I disliked. The FSF did really sneaky stuff, downright immoral in my opinion.”

Linus Torvalds (1969) Finnish-American software engineer and hacker

https://www.youtube.com/watch?v=5PmHRSeA2c8&t=49m37s
DebConf 14: Q&A with Linus Torvalds
DebConf 2014 Portland
Youtube/Google
49min37
2014
Daniel Gillmore, Ana Guerrerero López.
2010s, 2014

“Some people like to talk of intuition as a way of knowing truth; that gut reactions are as good as evidence based facts. It’s a really silly way of thinking…”

Derren Brown (1971) British illusionist

TV Series and Specials (Includes DVDs), Trick of the Mind (2004–2006)

“First, the eight rules of tolerance: 1. Stay out of the way. 2. Don't pick a fight. 3. If challenged, walk away. 4. Avoid eye contact. 5. If your enemy is diurnal, learn to be nocturnal. 6. Vice versa. 7. Possess nothing the other wants. 8. Draw the line at hurting kids: I will fight to the death.
After tolerance is achieved comes play. Here are the nine rules of play: 1. Know when to quit. 2. Learn how to handicap. 3. Learn what frightens the other (cat claws). 4. Don't let it get to you. It's just a game; you mustn't take it seriously (cats have trouble with this one—escalation is always a risk in cat games). 5. Don't eat your playmate. 6. Pay attention to the signals on the other side—for instance, “enough” and “quit.” 7. Don't suddenly change the rules. 8. Don't be a sore loser. 9. Remember: It's only a game.
And if play succeeds, we can move on to the eight rules of friendship: 1. Learn the rules of your opposite number. 2. Recognize that danger is no longer relevant. 3. Take your time. 4. One step at a time. 5. Apologize often by learning the other's words, gestures, sounds, or postures for “I'm sorry.””

Jeffrey Moussaieff Masson (1941) American writer and activist

6. Acknowledge mistakes. 7. Make the offer of friendship more than once. 8. Express curiosity about what the other is like.
Source: Raising the Peaceable Kingdom (2005), Ch. 5

“When people are eating meat, I think of it as a bit like smoking. It’s sort of Russian roulette. You may not get diabetes, but your chances of getting diabetes, about 1 in 3. You may not get cancer, but, your chances, if you’re a man, about 1 in 2. A woman, 1 in 3. Your chances of gaining weight, 2 out of 3. It’s not all diet, but, most of it is. The best thing that you can do to make sure that you empty all those bullets out of the chamber and not taking a risk with your health is to get the animal products out of your diet and eat healthy foods.”

Neal D. Barnard (1953) American physician, author, and clinical researcher

Interview in the documentary-film What the Health by Kip Andersen (2017).

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