Aristotle considered (prime) matter to be unintelligible andnon - being» Fourth, developments in genetic engineering will pose a challenge both ethically and metaphysically in the way man deals with attempts to manipulate life (and change it) via cloning, hybrids, and the integration of
human (organic) and machine technology (via nano - technology); issues of
conscience, soul,
purpose, intelligence, memory and morality will require the Church to articulate competently its understanding of the
human person in order to provide an ethical voice.