Cats gravitate to kitchens like rocks gravitate to gravity.

It cannot be said often enough that science fiction as a genre is incredibly educational - and I'm speaking the written science fiction, not 'Star Trek.' Science fiction writers tend to fill their books if they're clever with little bits of interesting stuff and real stuff.

There have been better attempts at marching, and they have been made by penguins.

Humans! They lived in a world where the grass continued to be green and the sun rose every day and flowers regularly turned into fruit, and what impressed them? Weeping statues. And wine made out of water! A mere quantum-mechanistic tunnel effect, that'd happen anyway if you were prepared to wait zillions of years. As if the turning of sunlight into wine, by means of vines and grapes and time and enzymes, wasn't a thousand times more impressive and happened all the time.

But the purpose of the book is not the horror, it is horror's defeat.

Nanny Ogg never did any housework herself, but she was the cause of housework in other people.

Goodness is about what you do. Not who you pray to.