Science devises ever bloodier means of war until humanity's powers of destruction overcome our powers of creation and our civilisation drives itself to extinction.
Historically, unfortunately, race seems to be the major division that humanity has imposed on itself, a way of subdividing into smaller groups.
Anticipating the end of the world is humanity's oldest passtime
Your turn has come to sift through the dreck of humanity for rare specks of originality
The better organized the state, the duller its humanity.