When the girl sitting at the next table looked away from a moment, Dirk leaned over and took her coffee. He knew that he was perfectly safe doing this because she would simply not be able to believe that this had happened.

If on the other hand he went to pay his respects to The Door and it wasn't there . . . what then? The answer, of course, was very simple. He had a whole board of circuits for dealing with exactly this problem, in fact this was the very heart of his function. He would continue to believe in it whatever the facts turned out to be, what else was the meaning of Belief? The Door would still be there, even if the Door was not.

Humans think they are smarter than dolphins because we build cars and buildings and start wars etc., and all that dolphins do is swim in the water, eat fish and play around. Dolphins believe that they are smarter for exactly the same reasons.

Much to his annoyance, a thought popped into his mind. It was very clear and very distinct, and he had now come to recognize these thoughts for what they were. His instinct was to resist them.

[The Head of Radio Three] had been ensnared by the Music Director of the college and a Professor of Philosophy. These two were busy explaining to the harassed man that the phrase "too much Mozart" was, given any reasonable definition of those three words, an inherently self-contradictory expression, and that any sentence which contained such a phrase would be thereby rendered meaningless and could not, consequently, be advanced as part of an argument in favour of any given programme-scheduling strategy.

We notice things that don't work. We don't notice things that do. We notice computers, we don't notice pennies. We notice e-book readers, we don't notice books.

The party and the Krikkit warship looked, in their writhings, a little like two ducks, one of which is trying to make a third duck inside the second duck, whilst the second duck is trying very hard to explain that it doesn't feel ready for a third duck right now, is uncertain that it would want any putative third duck anyway, and certainly not whilst it, the second duck, was busy flying.