Poetry is devil's wine.

The Kingdom of Heaven, O man, requires no other price than yourself. The value of it is yourself. Give yourself for it and you shall have it.

Da mihi castitatem et continentiam, sed noli modo (Give me chastity and continence, but not just yet)!

The sufficiency of my merit is to know that my merit is not sufficient.

There is nothing more serious than the sacrilege of schism because there is no just cause for severing the unity of the 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.

Don't you believe that there is in man a deep so profound as to be hidden even to him in whom it is?