“Like billiard balls colliding our courses were altered.”

“His heart cannoned like a billiard ball off some green wall of his innards.”

“After some cogitation, it is difficult not to agree with Herman Bondi (1919 - 2005), who in his book 'Relativity and Common Sense' says:... The surprising thing, surely, is that molecules in a gas behave so much as billiard balls, not that electrons behave so little like billiard balls.”

“I sometimes have the feeling that her entire life was merely a continuation of her mother's, much as the course of a ball on the billiard table is merely the continuation of the player's arm movement.”

“Hume emphasized that the expectation of one thing following another does not lie in the things themselves, but in our mind. And expectation, as we have seen, is associated with habit. Going back to the child again, it would not have stared in amazement if when one billiard ball struck the other, both had remained perfectly motionless. When we speak of the 'laws of nature' or of 'cause and effect,' we are actually speaking of what we expect, rather than what is 'reasonable.' The laws of nature are neither reasonable nor unreasonable, they simply are. The expectation that the white billiard ball will move when it is struck by the black billiard ball is therefore not innate. We are not born with a set of expectations as to what the world is like or how things in the world behave. The world is like it is, and it's something we get to know”

“They’re soul mates. She has about as much brain as a retarded billiards ball, and he approximately the same.”