title: A philosopher's point of view.
authors.forename: B
authors.initials: B
authors.lastname: Williams
mesh_terms: D000818:Animals; D033421:Beginning of Human Life; D005314:Embryonic and Fetal Development; D005306:Fertilization; D006806:Human Rights; D006801:Humans; D019369:Life; D028723:Personhood; D010684:Philosophy