"After that I don't want any more ruined cities.

I've got no use for them." "No, but you've got a use for other things, haven't you?
You can use rubies as big as pigeon's eggs, I suppose.

You've got a use for sapphires, the like of which mortal man never set eyes on before." "That's certainly so," Hayle replied.

"But what has this Sengkor-Wat to do with it ?" "Everything in the world," Kitwater replied.

"That's where those rubies are, and what's more, that's where we are going to find them." "Are you joking, or is this sober earnest ?" He looked from Kitwater to Codd.