Strong Words on Marriage by Douglas Farrow

"The church, which has been enabled evangelically and sacramentally to see into the heart of marriage—to recognize its covenantal as well as its contractual features, its eschatological as well as its civil consequences—has an obligation to nurture and protect marriage, not only for itself but for its neighbours.  It has an obligation to defend the family and civil society from the threat of absorption into the state.  It cannot do this, however, if it brackets the problem of homosexuality or fails to address the gnostic temptation inherent in the same-sex movement.  Still less can it do so if it insists on bracketing its own problem: the complicity of its members in the culture of sterile sex.  For it is only in that culture that same-sex marriage is thinkable."

- Douglas Farrow, "Same-Sex Marriage and the Sublation of Civil Society" in Desiring a Better Country

Anscombe On Intentions in Contraception vs. NFP

“Contraceptive intercourse and intercourse using infertile times may be alike in respect of further intention, and these further intentions may be good, justified, excellent. .. But contraceptive intercourse is faulted, not on account of this further intention, but because of the kind of intentional action you are doing.  The action is not left by you as the kind of act by which life is transmitted, but is purposely rendered infertile, and so changed to another sort of act of altogether.”

- Elizabeth Anscombe, "Contraception and Chastity"