### „Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does lightning travel in a straight line.“

— Benoît Mandelbrot, book The Fractal Geometry of Nature

The Fractal Geometry of Nature (1982), p. 1

p, 125

On the Sizes and Distances of the Sun and the Moon (c. 250 BC)

— Benoît Mandelbrot, book The Fractal Geometry of Nature

The Fractal Geometry of Nature (1982), p. 1

— Aristarchus of Samos ancient Greek astronomer and mathematician

p, 125

On the Sizes and Distances of the Sun and the Moon (c. 250 BC)

— Edwin Abbott Abbott, book Flatland

Source: Flatland: A Romance of Many Dimensions (1884), PART II: OTHER WORLDS, Chapter 19. How, Though the Sphere Showed Me Other Mysteries of Spaceland, I Still Desired More; and What Came of It

— Paul Cézanne French painter 1839 - 1906

Source: Quotes of Paul Cezanne, after 1900, pp. 163-164, in: 'What he told me – I. The motif'

— Sören Kierkegaard Danish philosopher and theologian, founder of Existentialism 1813 - 1855

Source: 1840s, Two Ethical-Religious Minor Essays (1849), P. 90-91

— Thomas Mann German novelist, and 1929 Nobel Prize laureate 1875 - 1955

— Thomas Little Heath British civil servant and academic 1861 - 1940

p, 125

Achimedes (1920)

— Aristarchus of Samos ancient Greek astronomer and mathematician

p, 125

On the Sizes and Distances of the Sun and the Moon (c. 250 BC)

— Marcus Aurelius, book Meditations

VIII, 41

Meditations (c. 121–180 AD), Book VIII

Context: The things... which are proper to the understanding no other man is used to impede, for neither fire, nor iron, nor tyrant, nor abuse, touches it in any way. When it has been made a sphere, it continues a sphere.

— Carl Friedrich Gauss German mathematician and physical scientist 1777 - 1855

"Gauss's Abstract of the Disquisitiones Generales circa Superficies Curvas presented to the Royal Society of Gottingen" (1827) Tr. James Caddall Morehead & Adam Miller Hiltebeitel in General Investigations of Curved Surfaces of 1827 and 1825 http://books.google.com/books?id=SYJsAAAAMAAJ& (1902)

Context: In researches in which an infinity of directions of straight lines in space is concerned, it is advantageous to represent these directions by means of those points upon a fixed sphere, which are the end points of the radii drawn parallel to the lines. The centre and the radius of this auxiliary sphere are here quite arbitrary. The radius may be taken equal to unity. This procedure agrees fundamentally with that which is constantly employed in astronomy, where all directions are referred to a fictitious celestial sphere of infinite radius. Spherical trigonometry and certain other theorems, to which the author has added a new one of frequent application, then serve for the solution of the problems which the comparison of the various directions involved can present.

Such an ellipse will be formed in our present case…“

— James Bradley English astronomer; Astronomer Royal 1693 - 1762

Miscellaneous Works and Correspondence (1832), Demonstration of the Rules relating to the Apparent Motion of the Fixed Stars upon account of the Motion of Light.

— Johannes Kepler, book Mysterium Cosmographicum

Walter William Bryant, Kepler (1920), pp. 16–17

Mysterium Cosmographicum (1596)

— Proclus Greek philosopher 412 - 485

...

This... is what the the present theorem evinces, that when two right lines mutually cut each other, the vertical angles are equal. And it was first invented according to Eudemus by Thales...

Proposition XV. Thereom VIII.

— Carl Friedrich Gauss German mathematician and physical scientist 1777 - 1855

"Gauss's Abstract of the Disquisitiones Generales circa Superficies Curvas presented to the Royal Society of Gottingen" (1827) Tr. James Caddall Morehead & Adam Miller Hiltebeitel in General Investigations of Curved Surfaces of 1827 and 1825 http://books.google.com/books?id=SYJsAAAAMAAJ& (1902)

Context: In researches in which an infinity of directions of straight lines in space is concerned, it is advantageous to represent these directions by means of those points upon a fixed sphere, which are the end points of the radii drawn parallel to the lines. The centre and the radius of this auxiliary sphere are here quite arbitrary. The radius may be taken equal to unity. This procedure agrees fundamentally with that which is constantly employed in astronomy, where all directions are referred to a fictitious celestial sphere of infinite radius. Spherical trigonometry and certain other theorems, to which the author has added a new one of frequent application, then serve for the solution of the problems which the comparison of the various directions involved can present.

— Aristarchus of Samos ancient Greek astronomer and mathematician

p, 125

On the Sizes and Distances of the Sun and the Moon (c. 250 BC)

— Archimedes, book The Method of Mechanical Theorems

Proprosition 4.

The Method of Mechanical Theorems

— Johannes Kepler, book Mysterium Cosmographicum

As Quoted in "The Discovery of Kepler's Laws," Scientific American: Supplement (Apr 29, 1911) Vol. 71, No. 1843, p. 278 https://books.google.com/books?id=ov4-AQAAMAAJ&pg=PA258.

Mysterium Cosmographicum (1596)

— Lucy Stone American abolitionist and suffragist 1818 - 1893

Remark made at a National Woman's Rights Convention in Cincinnati, Ohio. (1855), quoted in Feminism: The Essential Historical Writings (1972) by Miriam Schnier

— Sam Keen author, professor, and philosopher 1931

The Passionate Life (1983)

And multiply each through endless years,—

One minute of heaven is worth them all.“

— Thomas Moore Irish poet, singer and songwriter 1779 - 1852

Lalla Rookh http://www.columbia.edu/itc/mealac/pritchett/00generallinks/lallarookh/index.html (1817), Part IV: Paradise and the Peri