[Science fiction is] out in the mainstream now. You can tell by the way mainstream literary authors pillage SF while denying they're writing it!

He'd been wrong, there was a light at the end of the tunnel, and it was a flamethrower.

Man just went past with a cat on his head.

Scientists have calculated that the chances of something so patently absurd actually existing are millions to one. But magicians have calculated that million-to-one chances crop up nine times out of ten.

I think when people mean that Discworld books have become darker they really mean the series is growing up. In 'The Colour of Magic' most of the city is set alight. It's a joke, in much the same way that the Earth is destroyed almost at the start of Douglas Adams's 'The Hitchhikers Guide to the Galaxy.'

The reaper does not listen to the harvest.

Raising the flag and singing the anthem are, while somewhat suspicious, not in themselves acts of treason.