They lost their introspective look.

He even smiled wistfully.
"You are a man after my own heart, Mr.Furneaux," he said.

"I had no idea that the Criminal Investigation Department employed philosophers of your caliber.

I suppose that you and I are about to swallow coffee containing indeterminate percentages of the chief constituents you named." "One does not look at gift coffee in the cup," grinned the little man, obviously well pleased with himself.

"But, if ever you two gentlemen favor my obscure dwelling with a visit, and partake of a meal, you will have a strict analysis with every bite and sup.