It is a long-cherished tradition among a certain type of military thinker that huge casualties are the main thing. If they are on the other side then this is a valuable bonus.

Strength enough to build a home, Time enough to hold a child, Love enough to break a heart

As we all know, the Discworld is a flat planet - like a geological pizza, but without the anchovies.

Evil begins when you begin to treat people as things.

Have a bit more patience with newbies. Of course some of them act dumb - they're often students, for heaven's sake.

Particles of raw inspiration sleet through the universe all the time. Every once in a while one of them hits a receptive mind, which then invents DNA or the flute sonata form or a way of making light bulbs wear out in half the time. But most of them miss. Most people go through their lives without being hit by even one.

First Sight means you can see what really is there, and Second Thoughts mean thinking about what you are thinking. And in Tiffany's case, there were sometimes Third Thoughts and Fourth Thoughts although these...sometimes led her to walk into doors.