Definitive Quote by Kip Thorne

“The key question for a quantum theory of gravity is then the following: Can we extend to quantum theory the principle that space has…

— Lee Smolin

“Now, at the outset of the twenty-first century, we stand on the verge of a new revolution. The search for a deeper theory than…

— Marcus Chown

“So, in the end, the most improbable and hence the most puzzling aspect of space is its very existence. The simple fact that we…

— Lee Smolin

“So we may now pose a question which could be answered only if we have a quantum theory of gravity. What is the nature…

— Lee Smolin

Evolution is just a theory? Well, so is gravity and I don't see you jumping out of buildings.

— Richard Dawkins

Einstein wrestled with a problem back before we even knew the universe was expanding, and he was looking for a way to keep the…

— Adam Riess

The theory of evolution, like the theory of gravity, is a scientific fact.

— Neil deGrasse Tyson

The most important single thing about string theory is that it's a highly mathematical theory, and the mathematics holds together in a very tight…

— Leonard Susskind

Verbal and nonverbal activity is a unified whole, and theory and methodology should be organized or created to treat it as such.

— Anonymous

“If infinities are signs of missing unification, a unified theory will have none. It will be what we call a finite theory, a theory…

— Lee Smolin

I would say in one sentence my goal is to at least be part of the journey to find the unified theory that Einstein…

— Brian Greene

A unified theory would put us at the doorstep of a vast universe of things that we could finally explore with precision.

— Brian Greene