"Come with me into the dining room of my house. Now what do you see?"
"Seven large pictures."
"Where are the windows?"
"There are three at the bottom of the room."
"What colour are the curtains?"
"A rich red."
"What is the subject of the large picture facing the fire-place?"
"The battle of Trafalgar."
"How do you know it is that battle?"
"Because I can read on the flag of one of the ships the words, 'England expects that every man will do his duty.'"