"... The way in which string theory addresses the cosmological constant problem can be summarized as follows: • Fundam…"

"[Einstein's cosmological constant] is a name without any meaning. ...We have, in fact, not the slightest inkling of w…"

"The theoretical view of the actual universe, if it is in correspondence to our reasoning, is the following. The curva…"

"Much later, when I was discussing cosmological problems with Einstein, he remarked that the introduction of the cosmo…"

"After putting the finishing touches on general relativity in 1915, Einstein applied his new equations for gravity to …"

"The miracle of physics that I'm talking about here is something that was actually known since the time of Einstein's …"

"In 1917 de Sitter showed that Einstein's field equations could be solved by a model that was completely empty apart f…"

"Even today, our picture of a world woven together by a gravitational force, and electromagnetic force, a strong force…"

"In Einstein's scheme there was no end, no outside. Shoot an arrow or a light beam infinitely far in any direction and…"

"It's a term that Einstein recognized as allowed by his theory — he threw it in and then, in disgust, threw it out aga…"