Doorstep Quote by Brian Greene

I think the discovery of supersymmetric partners for the known particles would revolutionize our understanding of the universe.

— Stephen Hawking

I came to realise that string theory offers us the best hope of finding a unified theory of all matter and forces.

— Ashoke Sen

Some wonder whether some day we will arrive at a theory of everything and run out of new problems to solve - much as…

— David Gross

A successful unification of quantum theory and relativity would necessarily be a theory of the universe as a whole. It would tell us, as…

— Lee Smolin

I don't believe that the ultimate theory will come by steady work along existing lines. We need something new. We can't predict what that…

— Stephen Hawking

At any one time there is a natural tendency among physicists to believe that we already know the essential ingredients of a comprehensive theory…

— Val Logsdon Fitch

“Yet if there really were a complete unified theory, it would also presumably determine our actions—so the theory itself would determine the outcome of…

— Stephen Hawking

If we ever do find a complete theory of the universe, it would be a great triumph of human reason but it wouldn't leave…

— Stephen Hawking

Sciences are being unified by the search for life in the universe.

— John M. Grunsfeld

We already have a pretty good knowledge of the universe's mass-energy content, so if we can get a handle on its geometry, then we…

— Priyamvada Natarajan

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire…

— Stephen Hawking

We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

— Kip Thorne