Number is divided into even and odd. Even number is divided into the following: evenly even, evenly uneven, and unevenly uneven. Odd number is divided into the following: prime and incomposite, composite, and a third intermediate class (mediocris) which in a certain way is prime and incomposite but in another way secondary and composite.
Isidore of SevilleWe, as Catholics are not permitted to believe anything of our own will, nor to choose what someone has believed of his. We have God's apostles as authorities, who did not themselves of their own wills choose anything of what they wanted to believe, but faithfully transmitted to the nations, the teachings of Christ.
Isidore of SevilleNothing exists without music, for the universe itself is said to have been framed by a kind of harmony of sounds, and the heaven itself revolves under the tone of that harmony.
Isidore of SevilleConfession heals, confession justifies, confession grants pardon of sin, all hope consists in confession; in confession there is a chance for mercy.
Isidore of Seville