Roger Penrose

The universe is not a computer. It is a mathematical structure.

Consciousness is not a computation. It is something else.

The problem of consciousness is the most profound problem in science.

Mathematics is not just a language; it is a universe.

Our understanding of the universe is still very primitive.

Black holes are not just theoretical constructs; they are real objects.

The singularity theorems show that general relativity predicts its own breakdown.

Twistor theory is an attempt to unify general relativity and quantum mechanics.

The universe had a beginning, and it will have an end.

Conformal cyclic cosmology suggests that the Big Bang was not the beginning of everything.

The laws of physics are not arbitrary; they are deeply mathematical.

There is a deep connection between the physical world and the mathematical world.

The human brain is not a digital computer.

Gödel's theorem has profound implications for our understanding of the mind.

We are still a long way from understanding the nature of reality.

The beauty of mathematics is an indication of its truth.

The universe is not random; it is governed by precise mathematical laws.

General relativity is a beautiful and elegant theory.

Quantum mechanics is a strange and counter-intuitive theory.

The unification of general relativity and quantum mechanics is the greatest challenge in physics.