Special Relativity gave us space-time. General Relativity in effect gives us matter-space-time …. It is the matter that bends, or distorts, the fabric of space-time ….

It is quite astonishing how old ideas keep turning up in new guises as we probe back to the moment of creation.

“I only know what it is that’s wrong with him; not why it is.”
“And what is it?” asked Lucy fearfully, expecting some harrowing tale.
“The old trouble; things won’t fit.”
“What things?”
“The things of the universe. It is quite true. They don’t.”

The passengers came crowding into the restaurant car and took their seats round the tables. They all bore more or less the same expression, one of expectancy mingled with apprehension.

Everywhere, people had theoretical models based on ideology, rather than facts ….

The most elegant theories could be shattered by a single inconvenient fact.

[T]he fictional detective is a catalyst ….

The state of the early universe was not chosen randomly among all possible states. Everyone in the world who has thought about the problem agrees with that. What they don’t agree on is why the early universe was so special―what is the mechanism that put it in that state?

The arrow of time … is not a feature of the underlying laws of physics, at least as far as we know.