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Top 15 John D. Barrow Quotes (2024 Update)

John D. Barrow Quote: “We are just strings of quarks living in a suburb of the local density maximum of the universe.”

1. “We are just strings of quarks living in a suburb of the local density maximum of the universe.”

— John D. Barrow

John D. Barrow Quote: “We can never know the origins of the universe. The deepest secrets are the ones that keep themselves.”

2. “We can never know the origins of the universe. The deepest secrets are the ones that keep themselves.”

— John D. Barrow

John D. Barrow Quote: “Once upon a time when there was no time.”

3. “Once upon a time when there was no time.”

— John D. Barrow

John D. Barrow Quote: “There was no “before” the beginning of our universe, because once upon a time there was no time.”

4. “There was no “before” the beginning of our universe, because once upon a time there was no time.”

— John D. Barrow

John D. Barrow Quote: “When we try to observe things that are very small, the act of observation itself will significantly disturb the state we are seeking to measure.”

5. “When we try to observe things that are very small, the act of observation itself will significantly disturb the state we are seeking to measure.”

— John D. Barrow

John D. Barrow Quote: “History is full of people who thought they were right – absolutely right, completely right, without a shadow of a doubt. And because history never seems like history when you are living through it, it is tempting for us to think the same.”

6. “History is full of people who thought they were right – absolutely right, completely right, without a shadow of a doubt. And because history never seems like history when you are living through it, it is tempting for us to think the same.”

— John D. Barrow

John D. Barrow Quote: “There is no reason that the universe should be designed for our convenience.”

7. “There is no reason that the universe should be designed for our convenience.”

— John D. Barrow

John D. Barrow Quote: “If all the stars and galaxies in the universe today were smoothed out into a uniform sea of atoms, there would only be about one atom in every cubic meter of space.”

8. “If all the stars and galaxies in the universe today were smoothed out into a uniform sea of atoms, there would only be about one atom in every cubic meter of space.”

— John D. Barrow

John D. Barrow Quote: “We can predict the present without having to know everything about the past.”

9. “We can predict the present without having to know everything about the past.”

— John D. Barrow

John D. Barrow Quote: “There are only certain intervals of time when life of any sort is possible in an expanding universe and we can practise astronomy only during that habitable time interval in cosmic history.”

10. “There are only certain intervals of time when life of any sort is possible in an expanding universe and we can practise astronomy only during that habitable time interval in cosmic history.”

— John D. Barrow

John D. Barrow Quote: “If the deep logic of what determines the value of the fine-structure constant also played a significant role in our understanding of all the physical processes in which the fine-structure constant enters, then we would be stymied. Fortunately, we do not need to know everything before we can know something.”

11. “If the deep logic of what determines the value of the fine-structure constant also played a significant role in our understanding of all the physical processes in which the fine-structure constant enters, then we would be stymied. Fortunately, we do not need to know everything before we can know something.”

— John D. Barrow

John D. Barrow Quote: “Apparently, a great deal of dark, unseen material exists, whose gravitational pull is responsible for the motions of the stars and galaxies that we see.”

12. “Apparently, a great deal of dark, unseen material exists, whose gravitational pull is responsible for the motions of the stars and galaxies that we see.”

— John D. Barrow

John D. Barrow Quote: “Gravity acts on all forms of mass and energy, but energy comes in a host of very different forms that behave in peculiar ways that were not known in Newton’s day. Wotst of all, gravity gravitates. Those waves of gravity that spread out, rippling the curvature of space, carry energy too and that energy acts as a source for its own gravity field. Gravity interacts with itself in a way that light does not.”

13. “Gravity acts on all forms of mass and energy, but energy comes in a host of very different forms that behave in peculiar ways that were not known in Newton’s day. Wotst of all, gravity gravitates. Those waves of gravity that spread out, rippling the curvature of space, carry energy too and that energy acts as a source for its own gravity field. Gravity interacts with itself in a way that light does not.”

— John D. Barrow

John D. Barrow Quote: “What cannot be known is more revealing than what can.”

14. “What cannot be known is more revealing than what can.”

— John D. Barrow

John D. Barrow Quote: “This picture of matter curving space and curvaceous space dictating how matter and light will move has several striking features. It brings the non-Euclidean geometries that we talked about in the last chapter out from the library of pure mathematics into the arena of science. The vast collection of geometries describing spaces that are not simply the flat space of Euclid are the ones that Einstein used to capture the possible structures of space distorted by the presence of mass and energy.”

15. “This picture of matter curving space and curvaceous space dictating how matter and light will move has several striking features. It brings the non-Euclidean geometries that we talked about in the last chapter out from the library of pure mathematics into the arena of science. The vast collection of geometries describing spaces that are not simply the flat space of Euclid are the ones that Einstein used to capture the possible structures of space distorted by the presence of mass and energy.”

— John D. Barrow

John D. Barrow Quote: “Some things are as they are regardless of what they were.”

16. “Some things are as they are regardless of what they were.”

— John D. Barrow

John D. Barrow Quote: “There are about one hundred billion galaxies within this visible universe and the average density of material within a galaxy is about one million times greater than that in the visible universe as a whole, and corresponds to about one atom in every cubic centimetre.”

17. “There are about one hundred billion galaxies within this visible universe and the average density of material within a galaxy is about one million times greater than that in the visible universe as a whole, and corresponds to about one atom in every cubic centimetre.”

— John D. Barrow

John D. Barrow Quote: “Einstein argued that the laws of Nature should appear to be the same for all observers in the Universe, no matter where they were or how they were moving. If they were not then there would exist privileged observers for whom the laws of Nature looked simpler than they did for other observers.”

18. “Einstein argued that the laws of Nature should appear to be the same for all observers in the Universe, no matter where they were or how they were moving. If they were not then there would exist privileged observers for whom the laws of Nature looked simpler than they did for other observers.”

— John D. Barrow

John D. Barrow Quote: “We can measure the fine structure constant with very great precision, but so far none of our theories has provided an explanation of its measured value. One of the aims of superstring theory is to predict this quantity precisely. Any theory that could do that would be taken very seriously indeed as a potential ‘Theory of Everything’.”

19. “We can measure the fine structure constant with very great precision, but so far none of our theories has provided an explanation of its measured value. One of the aims of superstring theory is to predict this quantity precisely. Any theory that could do that would be taken very seriously indeed as a potential ‘Theory of Everything’.”

— John D. Barrow

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