whats good for the goose is good for the gander

Whats good for the goose is good for the gander is an idiom which means what is good for a man is equally good for a woman. In other words, any woman can do anything a man can do and have anything they have; the opposite is also true. This phrase comes from the ancient proverb which says whats sauce for the goose is sauce for the gander. This is one of the earliest references to equality between men and women.