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Top 20 Ian Stewart Quotes (2025 Update)

Ian Stewart Quote: “There are 10 kinds of people in the world: those who understand binary numerals, and those who don’t.”

1. “There are 10 kinds of people in the world: those who understand binary numerals, and those who don’t.”

— Ian Stewart

Ian Stewart Quote: “Mathematics is the science of patterns, and nature exploits just about every pattern that there is.”

2. “Mathematics is the science of patterns, and nature exploits just about every pattern that there is.”

— Ian Stewart

Ian Stewart Quote: “If our brains were simple enough for us to understand them, we’d be so simple that we couldn’t.”

3. “If our brains were simple enough for us to understand them, we’d be so simple that we couldn’t.”

— Ian Stewart

Ian Stewart Quote: “First is first, and second is nowhere.”

4. “First is first, and second is nowhere.”

— Ian Stewart

Ian Stewart Quote: “Religion hinges upon faith, politics hinges upon who can tell the most convincing lies or maybe just shout the loudest, but science hinges upon whether its conclusions resembe what actually happens.”

5. “Religion hinges upon faith, politics hinges upon who can tell the most convincing lies or maybe just shout the loudest, but science hinges upon whether its conclusions resembe what actually happens.”

— Ian Stewart

Ian Stewart Quote: “Mathematicians need proofs to keep them honest. All technical areas of human activity need reality checks. It is not enough to believe that something works, that it is a good way to proceed, or even that it is true. We need to know why it’s true. Otherwise, we won’t know anything at all.”

6. “Mathematicians need proofs to keep them honest. All technical areas of human activity need reality checks. It is not enough to believe that something works, that it is a good way to proceed, or even that it is true. We need to know why it’s true. Otherwise, we won’t know anything at all.”

— Ian Stewart

Ian Stewart Quote: “Two centuries ago Carl Friedrich Gauss, one of the greatest mathematicians and a founder of number theory, described his brainchild as “the queen of mathematics.” Queens are regal, but they are also largely decorative, and this nuance was not lost on Gauss.”

7. “Two centuries ago Carl Friedrich Gauss, one of the greatest mathematicians and a founder of number theory, described his brainchild as “the queen of mathematics.” Queens are regal, but they are also largely decorative, and this nuance was not lost on Gauss.”

— Ian Stewart

Ian Stewart Quote: “Chaos is lawless behavior governed entirely by law.”

8. “Chaos is lawless behavior governed entirely by law.”

— Ian Stewart

Ian Stewart Quote: “During the past fifty years, more mathematics has been created than in all previous ages put together.”

9. “During the past fifty years, more mathematics has been created than in all previous ages put together.”

— Ian Stewart

Ian Stewart Quote: “In mathematics, it’s unwise to abandon an interesting idea just because it’s wrong.”

10. “In mathematics, it’s unwise to abandon an interesting idea just because it’s wrong.”

— Ian Stewart

Ian Stewart Quote: “Unless you are genuinely interested in working with someone, don’t. It doesn’t matter how big an expert they are, or how much grant money the project would bring in. Stay away from things that do not interest you.”

11. “Unless you are genuinely interested in working with someone, don’t. It doesn’t matter how big an expert they are, or how much grant money the project would bring in. Stay away from things that do not interest you.”

— Ian Stewart

Ian Stewart Quote: “The Black–Scholes equation changed the world by creating a booming quadrillion-dollar industry; its generalisations, used unintelligently by a small coterie of bankers, changed the world again by contributing to a multitrillion-dollar financial crash whose ever more malign effects, now extending to entire national economics, are still being felt worldwide.”

12. “The Black–Scholes equation changed the world by creating a booming quadrillion-dollar industry; its generalisations, used unintelligently by a small coterie of bankers, changed the world again by contributing to a multitrillion-dollar financial crash whose ever more malign effects, now extending to entire national economics, are still being felt worldwide.”

— Ian Stewart

Ian Stewart Quote: “Maxwell’s equations didn’t just change the world. They opened up a new one.”

13. “Maxwell’s equations didn’t just change the world. They opened up a new one.”

— Ian Stewart

Ian Stewart Quote: “Most information doesn’t constitute a story. Think of a telephone directory: lots of information, strong cast, but a bit weak on narrative. What counts in a story is its meaning. And that’s a very different concept from information.”

14. “Most information doesn’t constitute a story. Think of a telephone directory: lots of information, strong cast, but a bit weak on narrative. What counts in a story is its meaning. And that’s a very different concept from information.”

— Ian Stewart

Ian Stewart Quote: “Only three constants are significant for star formation: the gravitational constant, the fine structure constant, and a constant that governs nuclear reaction rates.”

15. “Only three constants are significant for star formation: the gravitational constant, the fine structure constant, and a constant that governs nuclear reaction rates.”

— Ian Stewart

Ian Stewart Quote: “IQ is a statistical method for quantifying specific kinds of problem-solving ability, mathematically convenient but not necessarily corresponding to a real attribute of the human brain, and not necessarily representing whatever it is that we mean by ‘intelligence’.”

16. “IQ is a statistical method for quantifying specific kinds of problem-solving ability, mathematically convenient but not necessarily corresponding to a real attribute of the human brain, and not necessarily representing whatever it is that we mean by ‘intelligence’.”

— Ian Stewart

Ian Stewart Quote: “This is rather an awe-inspiring statement to get out of a straightforward uniqueness theorem in mathematics.”

17. “This is rather an awe-inspiring statement to get out of a straightforward uniqueness theorem in mathematics.”

— Ian Stewart

Ian Stewart Quote: “Why resort to welfare cuts when you could aim more accurately at what you claim to be the real problem: intelligence itself? Why not improve education? Indeed, why aim your policy at increasing intelligence at all? There are many other desirable human traits. Why not reduce gullibility, aggressiveness, or greed?”

18. “Why resort to welfare cuts when you could aim more accurately at what you claim to be the real problem: intelligence itself? Why not improve education? Indeed, why aim your policy at increasing intelligence at all? There are many other desirable human traits. Why not reduce gullibility, aggressiveness, or greed?”

— Ian Stewart

Ian Stewart Quote: “Math is a product of human minds but not bendable to human will.”

19. “Math is a product of human minds but not bendable to human will.”

— Ian Stewart

Ian Stewart Quote: “The urban myth that carrots are good for your eyesight originated in wartime disinformation, intended to stop the Nazis wondering why the British were getting so good at spotting raiding bombers.”

20. “The urban myth that carrots are good for your eyesight originated in wartime disinformation, intended to stop the Nazis wondering why the British were getting so good at spotting raiding bombers.”

— Ian Stewart

Ian Stewart Quote: “Something that doesn’t actually exist can still be useful.”

21. “Something that doesn’t actually exist can still be useful.”

— Ian Stewart

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