Quotation from: The Adventures of Sherlock Holmes

Written by: Sir Arthur Conan Doyle

"'No, no, not the sole, not the sole, my dear young lady,' he
cried. 'Your duty would be, as I am sure your good sense would
suggest, to obey any little commands my wife might give, provided
always that they were such commands as a lady might with
propriety obey. You see no difficulty, heh?'

"'I should be happy to make myself useful.'