"Human Life is sacred because from its beginning it involves the creative action of God and it remains forever in a special relationship with the Creator, who is its sole end. God alone is the Lord of life from its beginning until its end: no one can under any circumstance claim for himself the right directly to destroy an innocent human being."

a) Congregation for the Doctrine of the Faith, Instruction, Donum Vitae, introduction 5.
b) Catechism of the Catholic Church, Article 5, Section 2258.

Human life must be respected and protected absolutely from the moment of conception. From the first moment of his existence, a human being must be recognized as having the rights of a person - among which is the inviolable right of every innocent being to life.

Congregation for the Doctrine of the Faith, Donum vitae, I,I.

Before I formed you in the womb I knew you, and before you were born I consecrated you."

Jer 1:5; cf. Job 10:8-12; Ps 22:10-11.

My frame was not hidden from you when I was being made in secret, intricately wrought in the depths of the earth.

Ps 139:15.