"No, money system here." Which is fine by The Doctor's thought process as he doesn't really understand the concept of money.

"And that's just an idiom; coined by Sir Thomas More in one of his books. And I agree, it doesn't make a whole lot of sense at all with how humans charge each other for things and yet thar so clever aren't they? Even when they create the most senseless things.. Ahh. Thar so clever. Not to say they don't have thar faults." A pause;
"Would like to talk more on what's your mind?"