Achievement Quote by Richard P. Feynman

I always found it satisfying that gravity was described by Einstein's geometric theory of general relativity.

— Antony Garrett Lisi

Experimentally, we now have demonstrated that Einstein's theory is right in strong gravitational fields. That's important to a lot of people.

— Rainer Weiss

“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

I like to think that Einstein would look at string theory’s journey and smile, enjoying the theory’s remarkable geometrical features while feeling kinship with…

— Brian Greene

One of the main successes of string theory is that it has been able to unify the general theory of relativity, which describes gravity,…

— Ashoke Sen

“Impressed by the success of high-level mathematics in the formulation of the general theory of relativity in 1915, we find that Einstein's life-long quest…

— John D. Barrow

“Thus, the double unification given by the equivalence principle becomes a triple unification: All motions are equivalent once the effects of gravity are taken…

— Lee Smolin

For reasons probably related to the popular vision of Albert Einstein and, also, the threat posed by black holes in comic books and science…

— Rainer Weiss

“Albert Einstein was certainly the most important physicist of the twentieth century. Perhaps his greatest work was his discovery of general relativity, which is…

— Lee Smolin

It was Einstein's dream to discover the grand design of the universe, a single theory that explains everything. However, physicists in Einstein's day hadn't…

— Stephen Hawking

“A modern example of this stunning knowledge of nature that Einstein has gifted us, comes from 2016, when gravitational waves were discovered by a…

— Neil deGrasse Tyson

General relativity is the cornerstone of cosmology and astrophysics. It has also provided the conceptual basis for string theory and other attempts to unify…

— Paul Davies