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Fully understanding space and time has become physics’ most daunting challenge and sought-after prize.

Brian Greene (2005)



It is possible that some insightful person will one day devise a new way of looking at time and reveal a bona fide physical foundation for a time that flows

Brian Greene (2004)



The inflationary bang is best thought of as an event that the pre-existing universe experienced, but not necessarily the event that created the universe.

Brian Greene (2005)



According to inflation, the more than 100 billion galaxies, sparkling throughout space like heavenly diamonds, are nothing but quantum mechanics writ large across the sky. To me, this realization is one of the greatest wonders of the modern scientific age.

Brian Greene (2005)



The ultimate source of order, or low entropy, must be the Big Bang itself.

Brian Greene (2005)



The equations of string theory place mathematical restrictions on the geometry of the extra dimensions, requiring them to belong to a particular class called Calabi-Yau shapes ….

Brian Greene (2011)



It is this kind of explanation, one that elegantly steps outside the box … to explain observations with quantitative precision and artful symmetry, that physicists describe as almost being too beautiful to be wrong.

Brian Greene (2004)



Without invoking the power of symmetries, we’d be stuck at square one.

Brian Greene (2004)



The problem arises when we try to explain how the universe became so uniform.

Brian Greene (2004)