Love all men, even your enemies; love them, not because they are your brothers, but that they may become your brothers. Thus you will ever burn with fraternal love, both for him who is already your brother and for your enemy, that he may by loving become your brother.
Whoever, therefore, thinks that he understands the divine scriptures or any part of them so that it does not build on the double love of God and of our neighbor does not understand it at all. Thus a man supported by faith, hope, and charity, with an unshaken hold upon them does not need the scriptures. . . And many live by these three things in solitude without books.
Does God proclaim Himself in the wonders of creation? No. All things proclaim Him, all things speak. Their beauty is the voice by which they announce God, by which they sing, "It is you who made me beautiful, not me myself but you.
Such then in number and importance are the precious ties belonging to the Christian name which keep a believer in the Catholic Church, as it is right they should ... With you, where there is none of these things to attract or keep me... No one shall move me from the faith which binds my mind with ties so many and so strong to the Christian religion... For my part, I should not believe the gospel except as moved by the authority of the Catholic Church.
Two loves have made two different cities: self-love hath made a terrestrial city, which rises in contempt of God; and Divine Love hath made a celestial one, which rises in contempt of self. The former glories in itself - the latter in God.