, and relating to others in a self reflective manner is a person.
             6. To take away a person's right to life is murder
             7. Abortion is the killing of the fetus and is therefore the
             taking away of a person's right to life
             Crucial to this anti-abortion argument is the definition of "personhood" on which Joyce bases his first premise. He defines the fetus as a human being because it has the potential "for knowing, willing, desiring, and relating to others in a self reflective way..." He claims the importance of natural potentiality in the definition of personhood because leaving it out would imply that "the comatose, senile, and retarded - even the sleeping - would not necessarily be regarded as persons." His assumption is ambiguous as the belief that a mass of cells is a potential human is ambiguous. Every cell in the human body contains the genetic makeup of the whole and through science, has the potential to become a self reflective individual. I will return to this critique of Joyce's argument later in the essay.(1)
             Perhaps a less problematic argument against abortion is put by Professor Donald Marquis in his book entitled "Why Abortion Is Immoral" (2). To begin Marquis starts from what he terms an "unproblematic" assumption that "it is wrong to kill". The loss of one's life is the greatest loss we can suffer. It deprives us of all the experiences, activities, projects, and enjoyments that we would have had. Marquis argues with a hint of cynicism that killing someone is wrong because it inflicts a great loss on that person. The argument is as follows:
             1. We recognize that A will have a future similar to our own, containing all of life's experiences.
             2. To deprive A of this potentially full future by cutting its life short is morally wrong.
             This theory is not about the sanctity of life, but about a future and potential enjoyment lost...