John D. Barrow

Some things are as they are regardless of what they were.

— John D. Barrow

Once upon a time when there was no time.

— John D. Barrow

What cannot be known is more revealing than what can.

— John D. Barrow

Once upon a time there was no Time.

— John D. Barrow

“nothing is higher than heaven; nothing is beyond the walls of the world; nothing is lower than hell, or more glorious than…

— John D. Barrow

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

— John D. Barrow

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

— John D. Barrow

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

— John D. Barrow

“Any universe simple enough to be understood is too simple to produce a mind able to understand it -Barrow's Uncertainty Principle”

— John D. Barrow

“Each of us is a complicated assymetrical outcome of the laws of electromagnetism and gravity.”

— John D. Barrow

“The presence of the particles of matter , and their motion, determine the local topography of the space in which they sit.”

— John D. Barrow

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

— John D. Barrow

“The fact that simultaneous discovery occurs in mathematics, as well as the sciences, points toward some objective element within their subject matter…

— John D. Barrow

If all the stars and galaxies in the universe today were smoothed out into a uniform sea of atoms, there would only…

— John D. Barrow

When we try to observe things that are very small, the act of observation itself will significantly disturb the state we are…

— John D. Barrow

“Since so much of the physical universe, from brain waves to quantum waves, relies upon travelling waves we appreciate the key role…

— John D. Barrow

History is full of people who thought they were right -- absolutely right, completely right, without a shadow of a doubt. And…

— John D. Barrow

“Our brains are the most complicated objects that we have so far encountered in the Universe. We are far from simple. Indeed,…

— John D. Barrow

“Prior to then it was believed that black holes were just cosmic cookie monsters, swallowing everything that came within their gravitational clutches.”

— John D. Barrow

“Newton, as we have said, was the promoter of a Design Argument based upon the precision and universality of the laws of…

— John D. Barrow

“One of Nature's deep secrets is the fact that the outcomes of the laws of Nature do not have to possess the…

— John D. Barrow

“Today, a science fiction writer looking for a futuristic tale of silicon dominance would not pick upon the chemistry of silicon so…

— John D. Barrow

“Moreover, there is no known reason why the geometry of space and time should be described by the particular types of curved…

— John D. Barrow

“This picture of matter curving space and curvaceous space dictating how matter and light will move has several striking features. It brings…

— John D. Barrow

“I love cosmology: there’s something uplifting about viewing the entire universe as a single object with a certain shape. What entity, short…

— John D. Barrow

“All we can assert with confidence is a negative: if the constants of Nature were not within one percent or so of…

— John D. Barrow

“As we look way back into the first instants of the Big Bang, we find the quantum world that we described in…

— John D. Barrow

“If the deep logic of what determines the value of the fine-structure constant also played a significant role in our understanding of…

— John D. Barrow

“When an important change takes place in science, in which a new theory takes the stagw, the incoming theory is generally an…

— John D. Barrow

“The success of discovering a thermodynamic principle associated with the gravitational field of a black hole has led to a speculation that…

— John D. Barrow

“A true standard requires us to find some way of defining what we mean by one unit of time which is the…

— John D. Barrow

“A star is a body that is massive enough for the gravitational comptession at its centre to produce a temperature great enough…

— John D. Barrow

“In the Middle Ages, this conflict between the Platonic and Aristotelian views of the relationship between mathematics and the world began to…

— John D. Barrow

“Turing attended Wittgenstein's lectures on the philosophy of mathematics in Cambridge in 1939 and disagreed strongly with a line of argument that…

— John D. Barrow

“All our puzzles about whether or not lambda exists and, if so, what is responsible for giving it such a strange value,…

— John D. Barrow

“All the best physical theories are associated with equations which allow the continuation of data defined at present into the future, and…

— John D. Barrow

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

— John D. Barrow

“It is the cosmological vacuum energy that contributes a repulsive lambda force to the gravitational force of Newton.”

— John D. Barrow

“Any string of symbols that can be given an abbreviated representation is called algorithmically compressible.”

— John D. Barrow

“Universes that expand too slowly will collapse back to a big crunch before galaxies can form; universes that expand too quickly do…

— John D. Barrow