Theologicae regulae
Alan of Lille (1120–1202)
Alan's theological rules, wherein he sets forth over a hundred concise maxims.
Prologus I: Theologicae regulae
Regula I: Monas est, qua quaelibet res est una.
Regula II: In supercoelesti unitas, in coelesti alteritas, in subcoelesti pluralitas.
Regula III: Monas gignit monadem, et in se suum reflectit ardorem.
Regula IV: In Patre unitas, in Filio aequalitas, in Spiritu sancto unitatis aequalitatisque connexio.
Regula V: Sola monas est alpha et omega sine alpha et omega.
Regula VI: Omne limitatum alpha et omega aut est bonum ab alpha, aut est bonum ab alpha et omega.
Regula VII: Deus est spaera intelligibilis, cujus centrum ubique, circumferentia nusquam.
Regula VIII: Deus est cui quidlibet quod est, est esse omne quod est.
Regula IX: Quidquid est in Deo, Deus est.
Regula X: Omnis praedicatio de Creatore facta, copulata est atque conjuncta.
Regula XI: Omne simplex esse suum, et id quod est, unum habet.
Regula XII: Nullum simplex subjectum esse potest.
Regula XIII: Solum simplex est forma absque materiali subjecto, et substantia absque formali praedicato.
Regula XIV: Omne esse ex forma est.
Regula XV: Ejus, quod est esse, nullum est esse.
Regula XVI: Sola forma informis est, quia formae non est forma.
Regula XVII: Omne nomen datum ex forma, dictum de forma, cadit a forma.
Regula XVIII: Omnes affirmationes de Deo dictae incompactae, negationes vero verae.
Regula XIX: Omne simplex alio est, et alio dicitur esse.
Everything simple is by one thing, and is said to be by another.
This is born from that rule in which it was said: Every name given from form, etc. There it was said that no name properly belongs to God; and thus every simple thing, both the Father and the Son, and the Holy Spirit, is by one thing, because it is by its own essence: and is said to be by another, because from the effect which it has in creatures it is said to be, because whatever is, has being from God as from the highest being; and thus, because God makes all things be, he is said to be; his own essence, however, he is. Similarly God is just by one thing, and is said to be just by another: for by his own justice he is just; but he is said to be just from the effect of justice which he has in us: for he is called just, because he makes just; but he himself is just, because he is supreme justice.