What is sauce for the gander is sauce for the goose.
What is sauce for the goose is sauce for expression refers to a ship or boat sailing the gander.
What is sauce for the goose should be sauce for the gander.
What is sauce for the goose is sauce for the gander, as they say.
We cannot have one sauce for the goose and one for the gander.
Again we have the well-known policy of one sauce for the goose and another for the gander.
What is salt for the goose is salt for all ganders.
Is it impossible to give any further justification for this differentiation between the geese and the ganders?