Different Therefore Equal

Is a father better than a mother?
Is a sister better than a brother?
One's concave, one's convex
Does that make one sex better than the other?

Ajax' shoulders moved boulders
Helen's hips launched ships
Opposites favour their opposite's neighbour
Adam and Eve are fish and chips

The world needs us, so the world breeds us
From the ant and the elephant to the little rhesus monkey
Every creature from the anteater
To the mooses has its uses

Is black better than white? Day better than night?
Without either, there'd be neither!

Some weemens try to be she-mens
Then say that he-mens are worse than demons
Nature gives us equal chances
But to git 'em you shouldn't have to wear pantses

We're not like moles, does or rabbits
We should control our social habits
And things that turn us against each other
And don't learn us to be sister and brother

If her and him are indispensable
Treatin' 'em similar is only sensible
Reason gives us the logical sequel -
We're different, therefore equal