The blood of the martyrs is the seed of the church.

Discipline is an index to doctrine.

For it is really better for us not to know a thing, because [God] has not revealed it to us, than to know it according to man’s wisdom, because he has been bold enough to assume it.

But all the other frenzies of passions-impious both toward the bodies and toward the sexes-beyond the laws of nature, we banish not only from the threshold, but from all shelter of the Church, because they are not sins, but monstrosities.

Where our work is, there let our joy be.

It is not permitted for a woman to speak in the church, nor is it permitted for her to teach, nor to baptize, nor to offer [the eucharist], nor to claim for herself a share in any masculine function- not to mention any priestly office.

[T]he Father, the Son, and the Holy Ghost [are] three ... not in condition, but in degree; not in substance, but in form; not in power, but in aspect; yet of one substance, and of one condition, and of one power, inasmuch as He is one God, from whom these degrees and forms and aspects are reckoned, under the name of the Father, and of the Son, and of the Holy Ghost.