Plot exposition that can be gently wound out by the authorial voice and internal monologue of a character in the length of a page has to be delivered in a matter of seconds on the stage.

Lots of ingenuity gets you through times with no money better than money gets you through times of no ingenuity.

Quick, someone's coming! Look real!

They called themselves the Munrungs. It meant The People, or The True Human Beings. It's what most people call themselves, to begin with. And then one day the tribe meets some other People or, if it's not been a good day, The Enemy. If only they'd think up a name like Some More True Human Beings, it'd save a lot of trouble later on

Anyway, just because you're sworn enemies doesn't mean you can't be friends, does it?

You can't build a plot out of jokes. You need tragic relief. And you need to let people know that when a lot of frightened people are running around with edged weaponry, there are deaths. Stupid deaths, usually. I'm not writing 'The A-Team' - if there's a fight going on, people will get hurt. Not letting this happen would be a betrayal.

They looked at one another in incomprehension, two minds driving opposite ways up a narrow street and waiting for the other man to reverse first.