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Of Number and Magnitude

2 of 34 parts in The Mathematicall Praeface to the Elements of Geometrie by John Dee

Original

First, we will consider of Number, and of the Science Mathematicall, to it appropriate, called Arithmetike: and afterward of Magnitude, and his Science, called Geometrie. But that name contenteth me not: whereof a word or two hereafter shall be sayd. How Immateriall and free from all matter, Number is, who doth not perceaue? yea, who doth not wonderfully wõder at it? For, neither pure Element, nor Aristoteles, Quinta Essentia, is hable to serue for Number, as his propre matter. Nor yet the puritie and simplenes of Substance Spirituall or Angelicall, will be found propre enough thereto. And therefore the great & godly Philosopher Anitius Boetius, sayd: Omnia quæcun[que] a primæua rerum natura constructa sunt, Numerorum videntur ratione formata. Hoc enim fuit principale in animo Conditoris Exemplar. That is: All thinges (which from the very first originall being of thinges, haue bene framed and made) do appeare to be Formed by the reason of Numbers. For this was the principall example or patterne in the minde of the Creator. O comfortable allurement, O rauishing perswasion, to deale with a Science, whose Subiect, is so Auncient, so pure, so excellent, so surmounting all creatures, so vsed of the Almighty and incomprehensible wisdome of the Creator, in the distinct creation of all creatures: in all their distinct partes, properties, natures, and vertues, by order, and most absolute number, brought, from Nothing, to the Formalitie of their being and state. By Numbers propertie therefore, of vs, by all possible meanes, (to the perfection of the Science) learned, we may both winde and draw our selues into the inward and deepe search and vew, of all creatures distinct vertues, natures, properties, and Formes: And also, farder, arise, clime, ascend, and mount vp (with Speculatiue winges) in spirit, to behold in the Glas of Creation, the Forme of Formes, the Exemplar Number of all thinges Numerable: both visible and inuisible, mortall and immortall, Corporall and Spirituall. Part of this profound and diuine Science, had Ioachim the Prophesier atteyned vnto: by Numbers Formall, Naturall, and Rationall, forseyng, concludyng, and forshewyng great particular euents, long before their comming. His bookes yet remainyng, hereof, are good profe: And the noble Earle of Mirandula, (besides that,) a sufficient witnesse: that Ioachim, in his prophesies, proceded by no other way, then by Numbers Formall. And this Earle hym selfe, in Rome,

(Ano. 1488.)

* set vp 900. Conclusions, in all kinde of Sciences, openly to be disputed of: and among the rest, in his Conclusions Mathematicall, (in the eleuenth Conclusion) hath in Latin, this English sentence. By Numbers, a way is had, to the searchyng out, and vnderstandyng of euery thyng, hable to be knowen. For the verifying of which Conclusion, I promise to aunswere to the 74. Questions, vnder written, by the way of Numbers. Which Cõclusions, I omit here to rehearse: aswell auoidyng superfluous prolixitie: as, bycause Ioannes Picus, workes, are commonly had. But, in any case, I would wish that those Conclusions were red diligently, and perceiued of such, as are earnest Obseruers and Considerers of the constant law of nũbers: which is planted in thyngs Naturall and Supernaturall: and is prescribed to all Creatures, inuiolably to be kept. For, so, besides many other thinges, in those Conclusions to be marked, it would apeare, how sincerely, & within my boundes, I disclose the wonderfull mysteries, by numbers, to be atteyned vnto.

Of my former wordes, easy it is to be gathered, that Number hath a treble state: One, in the Creator: an other in euery Creature (in respect of his complete constitution:) and the third, in Spirituall and Angelicall Myndes, and in the Soule of mã. In the first and third state, Number, is termed Number Numbryng. But in all Creatures, otherwise, Number, is termed Nũber Numbred. And in our Soule, Nũber beareth such a swaye, and hath such an affinitie therwith: that some of the old Philosophers taught, Mans Soule, to be a Number mouyng it selfe. And in dede, in vs, though it be a very Accident: yet such an Accident it is, that before all Creatures it had perfect beyng, in the Creator, Sempiternally. Number Numbryng therfore, is the discretion discerning, and distincting of thinges. But in God the Creator, This discretion, in the beginnyng, produced orderly and distinctly all thinges. For his Numbryng, then, was his Creatyng of all thinges. And his Continuall Numbryng, of all thinges, is the Conseruation of them in being: And, where and when he will lacke an Vnit: there and then, that particular thyng shalbe Discreated. Here I stay. But our Seuerallyng, distinctyng, and Numbryng, createth nothyng: but of Multitude considered, maketh certaine and distinct determination. And albeit these thynges be waighty and truthes of great importance, yet (by the infinite goodnes of the Almighty Ternarie,) Artificiall Methods and easy wayes are made, by which the zelous Philosopher, may wyn nere this Riuerish Ida, this Mountayne of Contemplation: and more then Contemplation. And also, though Number, be a thyng so Immateriall, so diuine, and æternall: yet by degrees, by litle and litle, stretchyng forth, and applying some likenes of it, as first, to thinges Spirituall: and then, bryngyng it lower, to thynges sensibly perceiued: as of a momentanye sounde iterated: then to the least thynges that may be seen, numerable: And at length, (most grossely,) to a multitude of any corporall thynges seen, or felt: and so, of these grosse and sensible thynges, we are trayned to learne a certaine Image or likenes of numbers: and to vse Arte in them to our pleasure and proffit. So grosse is our conuersation, and dull is our apprehension: while mortall Sense, in vs, ruleth the common wealth of our litle world. Hereby we say, Three Lyons, are three: or a Ternarie. Three Egles, are three, or a Ternarie.

(☞)

Which * Ternaries, are eche, the Vnion, knot, and Vniformitie, of three discrete and distinct Vnits. That is, we may in eche Ternarie, thrise, seuerally pointe, and shew a part, One, One, and One. Where, in Numbryng, we say One, two, Three. But how farre, these visible Ones, do differre from our Indiuisible Vnits (in pure Arithmetike, principally considered) no man is ignorant. Yet from these grosse and materiall thynges, may we be led vpward, by degrees, so, informyng our rude Imagination, toward the cõceiuyng of Numbers, absolutely (:Not supposing, nor admixtyng any thyng created, Corporall or Spirituall, to support, conteyne, or represent those Numbers imagined:) that at length, we may be hable, to finde the number of our owne name, gloriously exemplified and registred in the booke of the Trinitie most blessed and æternall.

But farder vnderstand, that vulgar Practisers, haue Numbers, otherwise, in sundry Considerations: and extend their name farder, then to Numbers, whose least part is an Vnit. For the common Logist, Reckenmaster, or Arithmeticien, in hys vsing of Numbers: of an Vnit, imagineth lesse partes: and calleth them Fractions. As of an Vnit, he maketh an halfe, and thus noteth it, ½. and so of other, (infinitely diuerse) partes of an Vnit. Yea and farder, hath, Fractions of Fractions. &c.

Musean translation

Modern machine-assisted Musean edition by Mouseia, from Dee's 1570 Praeface. Latin quotations and titles are translated into English, using Dee's own English glosses where provided. Printer's type-size markup is normalized; marginal notes are kept as asides. Billingsley's separate address is omitted. Uncertain readings are marked.

First we will consider of number, and of the science mathematical appropriate to it, called Arithmetic: and afterward of magnitude, and its science, called geometry. But that name does not content me; of which a word or two shall be said hereafter. How immaterial and free from all matter Number is, who does not perceive? Indeed, who does not wonder at it greatly? For neither pure Element, nor Aristotle's Fifth Essence, is able to serve as the proper matter of Number. Nor yet will the purity and simplicity of Spiritual or Angelic Substance be found proper enough for it. And therefore the great and godly philosopher Anitius Boetius said: All things (which from the very first original being of things have been framed and made) do appear to be formed by the reason of Numbers. For this was the principal example or pattern in the mind of the Creator. O comfortable allurement, O ravishing persuasion, to deal with a Science whose Subject is so Ancient, so pure, so excellent, so surpassing all creatures, so used by the Almighty and incomprehensible wisdom of the Creator in the distinct creation of all creatures: in all their distinct parts, properties, natures, and virtues, by order and most absolute number, brought from Nothing to the formality of their being and state. By the property of numbers, therefore, learned by us by all possible means (to the perfection of the Science), we may both wind and draw ourselves into the inward and deep search and view of all creatures' distinct virtues, natures, properties, and forms; and also arise further, climb, ascend, and mount up (with speculative wings) in spirit to see in the Glass of Creation the Form of Forms, the Exemplar Number of all things numerable, both visible and invisible, mortal and immortal, corporeal and spiritual. Part of this profound and divine Science had Joachim the prophet attained: by Formal, Natural, and Rational Numbers, foreseeing, concluding, and foretelling great particular events long before their coming. His books yet remaining are good proof of this; and the noble Earl of Mirandula, besides that, a sufficient witness that Joachim in his prophecies proceeded by no other way than by Formal Numbers. And this Earl himself, in Rome,

(A.D. 1488.)

* set up 900 Conclusions, in all kinds of sciences, openly to be disputed; and among the rest, in his Mathematical Conclusions (in the eleventh Conclusion) he has in Latin this English sentence: By Numbers, a way is had to the searching out and understanding of every thing able to be known. For the verifying of which Conclusion, I promise to answer the 74 questions written below by the way of Numbers. Which Conclusions I omit here to rehearse: as well avoiding superfluous prolixity, as because the works of Joannes Picus are commonly available. But in any case I would wish that those Conclusions were read diligently and understood by such as are earnest observers and considerers of the constant law of numbers, which is planted in natural and supernatural things, and is prescribed to all creatures inviolably to be kept. For so, besides many other things in those Conclusions to be marked, it would appear how sincerely, and within my bounds, I disclose the wonderful mysteries to be attained by numbers.

Of my former words it is easy to gather that Number has a triple state: one in the Creator; another in every creature (in respect of its complete constitution); and the third in Spiritual and Angelic Minds, and in the Soul of man. In the first and third state Number is termed Number Numbering. But in all creatures otherwise, Number is termed Number Numbered. And in our Soul Number bears such sway, and has such affinity with it, that some of the old philosophers taught the human Soul to be a self-moving Number. And indeed in us, though it is a mere accident, yet such an accident is it that before all creatures it had perfect being in the Creator, eternally. Number Numbering, therefore, is the discretion that discerns and distinguishes things. But in God the Creator this discretion in the beginning produced all things orderly and distinctly. For his Numbering then was his Creating of all things. And his continual Numbering of all things is the conservation of them in being; and where and when he will lack a Unit, there and then that particular thing shall be discreated. Here I stop. But our separating, distinguishing, and Numbering creates nothing; of Multitude considered it makes a certain and distinct determination. And although these things are weighty and truths of great importance, yet (by the infinite goodness of the Almighty Ternary) artificial methods and easy ways are made by which the zealous philosopher may come near this Ida of many rivers, this Mountain of Contemplation, and more than Contemplation. And also, though Number be a thing so immaterial, so divine, and eternal, yet by degrees, little by little, stretching forth and applying some likeness of it — first to spiritual things, then bringing it lower to things sensibly perceived, as of a momentary sound repeated, then to the least things that may be seen, numerable, and at length (most grossly) to a multitude of any corporeal things seen or felt — and so from these gross and sensible things we are trained to learn a certain image or likeness of numbers, and to use art in them to our pleasure and profit. So gross is our conversation, and dull our apprehension, while mortal Sense in us rules the commonwealth of our little world. By this we say, Three lions are three, or a ternary. Three eagles are three, or a ternary.

(☞)

Which * ternaries are each the union, knot, and uniformity of three discrete and distinct units. That is, we may in each ternary thrice separately point out and show a part: One, One, and One. Where in numbering we say One, two, Three. But how far these visible Ones differ from our indivisible Units (principally considered in pure arithmetic) no one is ignorant. Yet from these gross and material things may we be led upward by degrees, so informing our rude imagination toward the conceiving of Numbers absolutely — not supposing, nor admixing any created thing, corporeal or spiritual, to support, contain, or represent those Numbers imagined — that at length we may be able to find the number of our own name gloriously exemplified and registered in the book of the Trinity most blessed and eternal.

But further understand that vulgar practitioners have Numbers otherwise in sundry considerations, and extend their name further than to Numbers whose least part is a Unit. For the common accountant, reckoning master, or arithmetician, in his using of Numbers, imagines lesser parts of a Unit, and calls them Fractions. As of a Unit he makes a half, and thus notes it, ½; and so of other (infinitely diverse) parts of a Unit. Indeed he further has fractions of fractions, etc.

Plain English translation

Modern machine-assisted Plain English edition by Mouseia, from Dee's 1570 Praeface. Latin quotations and titles are translated into English, using Dee's own English glosses where provided. Printer's type-size markup is normalized; marginal notes are kept as asides. Billingsley's separate address is omitted. Uncertain readings are marked.

First we will consider number, and the mathematical science proper to it, called Arithmetic; and afterward of magnitude, and its science, called geometry. But that name does not satisfy me; a word or two about that will come later. How immaterial and free from all matter number is, who does not perceive it? Yes, who does not marvel at it? For neither pure element, nor Aristotle's quintessence, can serve as the proper matter of number. Nor will the purity and simplicity of a Spiritual or Angelic Substance be found proper enough for it. And therefore the great and godly philosopher Anitius Boetius said: All things (which from the very first original being of things have been framed and made) appear to be formed by the reason of Numbers. For this was the principal example or pattern in the mind of the Creator. What a comfort, what a rapture, to deal with a Science whose Subject is so ancient, so pure, so excellent, so far above all creatures, and so used by the almighty and incomprehensible wisdom of the Creator in the distinct creation of all creatures: in all their distinct parts, properties, natures, and virtues, brought by order and the most absolute number, from Nothing, to the form of their being and state. Therefore, learning the property of Numbers by every possible means (to the perfection of the Science), we may both wind and draw ourselves into the inward and deep search and view of all creatures' distinct virtues, natures, properties, and Forms; and also further arise, climb, ascend and mount up (with speculative wings) in spirit, to see in the mirror of creation the Form of Forms, the model Number of all things numerable: both visible and invisible, mortal and immortal, bodily and spiritual. Part of this profound and divine Science the prophet Joachim had attained: by Formal, Natural and Rational Numbers, foreseeing, concluding and foretelling great particular events long before they came. His books still remaining are good proof of this; and the noble Earl of Mirandula (besides that) is a sufficient witness that Joachim, in his prophecies, proceeded by no other way than by Formal Numbers. And this Earl himself, in Rome,

In the year 1488.

He set up 900 conclusions in all kinds of sciences, openly to be disputed, and among the rest, in his Mathematical Conclusions (in the eleventh Conclusion) he has in Latin this English sentence: "By Numbers, a way is had to the searching out and understanding of every thing able to be known." To verify which Conclusion, I promise to answer the 74 questions written below by the way of Numbers. Which Conclusions I omit here to repeat, both to avoid needless length and because the works of Ioannes Picus are commonly available. But in any case I would wish that those Conclusions were read carefully and understood by such as are earnest observers and considerers of the constant law of numbers, which is planted in natural and supernatural things, and is prescribed to all creatures to be kept inviolably. For so, besides many other things to be noted in those Conclusions, it would appear how sincerely, and within my bounds, I disclose the wonderful mysteries to be attained by numbers.

From my earlier words it is easy to gather that Number has a threefold state: one in the Creator, another in every Creature (in respect of its complete constitution), and the third in Spiritual and Angelic Minds and in the Soul of man. In the first and third state, Number is called Number Numbering. But in all Creatures, otherwise, Number is called Number Numbered. And in our Soul, Number holds such sway and has such an affinity with it that some of the old Philosophers taught that the human Soul is a Number moving itself. And indeed, in us, though it is only an accident, yet it is such an accident that before all Creatures it had perfect being in the Creator, eternally. Number Numbering, then, is the discretion that discerns and distinguishes things. But in God the Creator this discretion, in the beginning, produced all things orderly and distinctly. For his Numbering then was his Creating of all things. And his continual Numbering of all things is their conservation in being; and wherever and whenever he will lack a Unit, there and then that particular thing will be uncreated. Here I stop. But our separating, distinguishing, and Numbering creates nothing; of Multitude considered it makes a certain and distinct determination. And although these things are weighty truths of great importance, yet (by the infinite goodness of the Almighty Ternary) Artificial Methods and easy ways are made by which the zealous Philosopher may draw near to this river-rich Ida, this Mountain of Contemplation, and more than Contemplation. And also, though Number is a thing so immaterial, so divine, and eternal, yet by degrees, little by little, stretching forth and applying some likeness of it—first to Spiritual things; then bringing it lower to things sensibly perceived, such as a momentary sound repeated; then to the smallest things that can be seen and numbered; and at length (most coarsely) to a multitude of any bodily things seen or felt—so from these coarse and sensible things we are trained to learn a certain Image or likeness of numbers, and to use Art in them for our pleasure and profit. So coarse is our dealing and dull our apprehension, while mortal Sense rules the commonwealth of our little world. By this we say, three lions are three, or a Ternary. Three eagles are three, or a Ternary.

Note this.

Such Ternaries are each the Union, knot, and Uniformity of three separate and distinct Units. That is, in each Ternary we can three times separately point out and show a part: One, One, and One. Whereas in Numbering we say One, two, Three. But how far these visible Ones differ from our Indivisible Units (principally considered in pure arithmetic) no one is ignorant. Yet from these coarse and material things we may be led upward, degree by degree, training our crude imagination toward the conceiving of Numbers absolutely (supposing no created thing, bodily or spiritual, to support, contain, or represent those Numbers imagined), that at length we may be able to find the number of our own name, gloriously exemplified and registered in the book of the most blessed and eternal Trinity.

But further understand that ordinary practitioners consider Numbers in various other ways, and extend the name further than to Numbers whose least part is a Unit. For the common reckoner, master of accounts, or arithmetician, in his use of Numbers, imagines parts smaller than a Unit and calls them Fractions. From a Unit he makes a half, and notes it thus, ½, and so of other (infinitely various) parts of a Unit. And further, he has Fractions of Fractions, etc.

About this section

Of Number and Magnitude is part of The Mathematicall Praeface to the Elements of Geometrie by John Dee. This page sets the 16th-century English original beside 2 direct-source translations, so any line can be checked against the source. It is part 2 of 34 in the work, which is kept in the European tradition.

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