Robert Surcouf to a British captive officer
Robert Surcouf was a French privateersman who amassed a large fortune as a ship-owner, from both privateering and commerce.
When a British captive officer challenged Surcouf with the words "You French fight for money while we fight for honour", Surcouf replied "Each of us fights for what he lacks most".
Well you see, they were looking for witty retorts.