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

- 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 seeking to measure.

- John D. Barrow

One would normally define a "religion" as a system of ideas that contain statements that cannot be logically or observationally demonstrated... Gödel…

- John D. Barrow

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

- John D. Barrow

Apparently, a great deal of dark, unseen material exists, whose gravitational pull is responsible for the motions of the stars and galaxies that we s…

- John D. Barrow

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

- 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 be about one atom in every cubic …

- John D. Barrow

What cannot be known is more revealing than what can.

- John D. Barrow

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 ha…

- John D. Barrow