'Discworld' is taking something that you know is ridiculous and treating it as if it is serious, to see if something interesting happens when you do so.

Tomorrow is the first day of the rest of our lives.

We're dealing here," said Vimes, "With a twisted mind." "Oh, no! You think so?" "Yes." "But... no... you can't be right. Because Nobby was with us all the time." "Not Nobby," said Vimes testily. "Whatever he might do to a dragon, I doubt if he'd make it explode. There's stranger people in this world than Corporal Nobbs, my lad." Carrot's expression slid into a rictus of intrigued horror. "Gosh," he said.

Of course, like all the informal inhabitants of the University the roaches were a little unusual, but there was something particularly unpleasant about the sound of billions of very small feet hitting the stones in perfect time. Rincewind stepped gingerly over the marching column. The Librarian jumped it. The Luggage, of course, followed them with a noise like someone tapdancing over a bag of crisps.

Mere animals couldn’t possibly manage to act like this. You need to be a human being to be really stupid.

Everybody thinks the Government should be doing more about everything but just think how many of the bonuses which are quite rightly being dragged off certain people, just think to what good causes they could be put - wouldn't that be a lovely thought'?

I would like permission to fetch a note from my mother, sir' Ridcully sighed. 'Rincewind, you once informed me, to my everlasting puzzlement, that you never knew your mother because she ran away before you were born. Distinctly remember writing it down in my diary. Would you like another try?' 'Permission to go and find my mother?'