"Einstein's general theory of relativity... was needed not because of conspicuous failures of Newton's theory... but b…"

"In the early 1960s general relativity experienced a sudden revival in connection with astrophysical discoveries far r…"

"The theoretical developments involving general relativity in the period prior to the renaissance made use of central …"

"If I were giving this lecture fifty years from now, the word "gravitation" would be as old-fashioned as the word "phl…"

"Differential geometry originally sneaked into theoretical physics through Einstein's theory of general relativity."

"Up to the early 1950s, general relativity was a little-frequented subject, amongst physicists—a theory that had to be…"

"There was difficulty reconciling the Newtonian theory of gravitation with its instantaneous propagation of forces wit…"

"General relativity was considered by Einstein as his most important discovery... a new theory of gravitation bringing…"

"The great triumph of the theory of relativity lies in its absorbing the universal force of gravitation into one geome…"

"Although Einstein's general theory of relativity predicts that there can exist... a singularity in our past, it provi…"