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 1 Fw (*) |         existence until birth. The reason for this usage is clarified
 2 Intro,3|           and Father.(12) For this reason marriage possesses specific
 3 Intro,4|  recognized and observed. For this reason one cannot use means and
 4 Intro,4|      possible is not for that very reason morally admissible. Rational
 5 Intro,5|         the Church offers to human reason in this field too the light
 6  I     | Magisterium and on the evidence of reason, as mentioned above, enables
 7  I,1   |           discerning by the use of reason a personal presence at the
 8  I,4   |      physical integrity or life by reason of the methods used or the
 9 II,1   |   paternity and maternity, (35) By reason of the vocation and social
10 II (36)|        truth accessible to natural reason. The Church's Tradition
11 II,5   |            fertilization. For this reason the very nature of homologous
12 II,6   |      conjugal act is prohibited by reason of the voluntarily achieved
13 II,8   |           of his parents. For this reason, the child has the right,
14 II,8   |    conjugal life does not for this reason lose its value. Physical
15 III    |            and its order. For this reason the new technological possibilities
16 Conclu |    invitation to all those who, by reason of their role and their