"What did you sell?"
"Never mind; I have made my fortune."—"I congratulate you."
"Well, will you buy all my armor?"
"No, I only want the cuirass."
"Do you only buy cuirasses?"
"Yes."
"That is odd, for if you buy and sell by weight, one sort of iron is as good as another."
"That is true, but I have preferences."
"Well, then, buy only the cuirass, or rather—now I think again—buy nothing at all."
"What do you mean?"