You have gained nothing at all.
"But, my dear, Monsieur Deschars certainly sent his little Julius to school at six years. Go and examine the schools and you will find lots of little boys of six there."
You talk for ten minutes more without the slightest interruption, and then you ejaculate another "Well?"
"Little Julius Deschars came home with chilblains," she says.
"But Charles has chilblains here."
"Never," she replies, proudly.
In a quarter of an hour, the main question is blocked by a side discussion on this point: "Has Charles had chilblains or not?"
You bandy contradictory allegations; you no longer believe each other; you must appeal to a third party.
Axiom.—Every household has its Court of Appeals which takes no notice of the merits, but judges matters of form only.
The nurse is sent for. She comes, and decides in favor of your wife.
It is fully decided that Charles has never had chilblains.