Nature has poured forth all things for the common use of all men. And God has ordained that all things should be produced that there might be food in common for all, and that the earth should be in the common possession of all. Nature created common rights, but usurpation has transformed them into private rights.
AmbroseThe Church's foundation is unshakable and firm against the assaults of the raging sea. Waves lash at the Church but do not shatter it. Although the elements of this world constantly batter and crash against her, she offers the safest harbor of salvation for all in distress.
AmbroseThe Church was redeemed at the price of Christ's blood. Jew or Greek, it makes no difference; but if he has believed, he must circumcise himself from his sins [in baptism (Col. 2:11-12)] so that he can be saved . . . for no one ascends into the kingdom of heaven except through the sacrament of baptism . . . "Unless a man be born again of water and the Holy Spirit, he cannot enter the kingdom of God"
Ambrose