No More Learning

A female           rises forth
From seed paternal, and from mother's body
Exist created males: since sex proceeds
No more from singleness of seed than faces
Or bodies or limbs of ours: for every birth
Is from a twofold seed; and what's created
Hath, of that parent which it is more like,
More than its equal share; as thou canst mark,--
Whether the breed be male or female stock.