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 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 SevillePrayer purifies us, reading instructs us. Both are good when both are possible. Otherwise, prayer is better than reading.
Isidore of SevilleMary means enlightener, because She brought forth the Light of the world. In the Syriac tongue, Mary signifies Lady.
Isidore of SevilleAll spiritual growth comes from reading and reflection. By reading we learn what we did not know; by reflection we retain what we have learned. The conscientious reader will be more concerned to carry out what he has read than merely to acquire knowledge of it. In reading we aim at knowing, but we must put into practice what we have learned in our course of study.
Isidore of Seville