Lincoln on Male Female Differences

Men and women are different.  Males and females of all species priorize a little differently.  There are advantages for the pair to do so.  Saying men and women are the same doesn't change a thing.  Abraham Lincoln's joke applies:

Abraham Lincoln faced with some thorny issue that could be settled by a twist of language, or a slight abuse of power, asks his questioner how many legs would a dog have, if we called the dog’s tail, a leg. “Five,” the questioner responds confident in his mathematical ability to do simple addition. “No,” Lincoln says. “Calling a dog’s tail a leg, doesn’t make it a leg.”

The story has been sourced. In the original, a calf features instead of a dog.