Quotation from: The Adventures of Sherlock Holmes

Written by: Sir Arthur Conan Doyle

"Had he ever spoken of Swandam Lane?"

"Never."

"Had he ever showed any signs of having taken opium?"

"Never."

"Thank you, Mrs. St. Clair. Those are the principal points about
which I wished to be absolutely clear. We shall now have a little
supper and then retire, for we may have a very busy day
to-morrow."