This was the definition of eternity; it was the space of time devised by the Great God Om to ensure that everyone got the punishment that was due to them.

And Sam Vimes thought: Why is Young Sam's nursery full of farmyard animals anyway? Why are his books full of moo-cows and baa-lambs? He is growing up in the city. He will only see them on a plate! They go sizzle!

First Thoughts are the everyday thoughts. Everyone has those. Second Thoughts are the thoughts you think about the way you think. People who enjoy thinking have those. Third Thoughts are thoughts that watch the world and think all by themselves. They’re rare, and often troublesome. Listening to them is part of witchcraft.

Some shadows are so long, they arrive before the light.

The worst thing you can do is nothing.

Theres no stink more sorrorful than the stink of wet, burnt paper. It means: the end.

"And what would humans be without love?" Rare, said Death.