We sleepwalk through our lives, because how could we live if we were always this awake?

There are times when phrases such as 'totally astonished' just don't do the job. I am of course delighted and honoured and, needless to say, flabbergasted.

Mort was hurt by this. It was one thing not to want to marry someone, but quite another to be told they didn't want to marry you.

What did I tell you about Mister Safety Catch?' said Vimes weakly. When Mister Safety Catch Is Not On, Mister Crossbow Is Not Your Friend,' recited Detritus, saluting.

God moves in extremely mysterious, not to say, circuitous ways. God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of any of the other players, ie., everybody, to being involved in an obscure and complex version of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.

There’s no point in believing in things that exist.

The Captain of the Watch says if you're still in the City by sunrise he will personally have you buried alive.