1.
Who does not understand should either learn, or be silent.
John Dee
2.
The message is that all things are connected. We have animal aspects, anthropological aspects, plant-animal aspects.
John Dee
3.
Neither the circle without the line, nor the line without the point, can be artificially produced. It is, therefore, by virtue of the point and the Monad that all things commence to emerge in principle. That which is affected at the periphery, however large it may be, cannot in any way lack the support of the central point.
John Dee
4.
There is (gentle reader) nothing (the works of God only set apart) which so much beautifies and adorns the soul and mind of man as does knowledge of the good arts and sciences . Many arts there are which beautify the mind of man; but of all none do more garnish and beautify it than those arts which are called mathematical , unto the knowledge of which no man can attain, without perfect knowledge and instruction of the principles, grounds, and Elements of Geometry.
John Dee
5.
Perspective is an Art Mathematical which demonstrates the manner and properties of all radiations direct, broken and reflected.
John Dee
6.
Although the semicircle of the Moon is placed above the circle of the Sun and would appear to be superior, nevertheless we know that the Sun is ruler and King. We see that the Moon in her shape and her proximity rivals the Sun with her grandeur, which is apparent to ordinary men, yet the face, or a semi-sphere of the Moon, always reflects the light of the Sun.
John Dee
7.
Cut that in Three, which Nature hath made One , Then strengthen hyt, even by it self alone, Wherewith then Cutte the poudred Sonne in twayne, By length of tyme, and heale the woonde againe. The self same Sunne twys yet more, ye must wounde, Still with new Knives, of the same kinde, and grounde; Our Monas trewe thus use by natures Law, Both binde and lewse, only with rype and rawe, And ay thanke God who only is our Guyde, All is ynugh, no more then at this Tyde.
John Dee
8.
The art of Navigation demonstrates how, by the shortest good way, by the aptest direction, and in the shortest time, a sufficient ship, between any two places (in passage navigable) assigned, may be conducted; and in all storms and natural disturbances chancing, how to use the best possible means, whereby to recover the place first assigned.
Mathematical Preface
John Dee
9.
A marveilous newtrality have these things mathematicall, and also a strange participation between things supernaturall and things naturall.
John Dee
10.
Therefore, the central point which we see in the centre of the hieroglyphic Monad produces the Earth , round which the Sun , the Moon , and the other planets follow their respective paths. The Sun has the supreme dignity , and we represent him by a circle having a visible centre.
John Dee