Quotes about symmetry
A collection of quotes on the topic of symmetry, use, nature, time.
Quotes about symmetry

1850s, Speech at Lewistown, Illinois (1858)

Nobel Banquet Speech

Letter to Frank Belknap Long (27 February 1931), in Selected Letters III, 1929-1931 edited by August Derleth and Donald Wandrei, p. 312
Non-Fiction, Letters, to Frank Belknap Long

Socrates, p. 35
L'Âme et la danse (1921)

“Symmetry is the aesthetics of the stupid.”
An early appearance is "Symmetry is the aesthetics of the little man," which appears in the 1965 book Bauen auf dem Lande (Building in the Countryside), volumes 16-17. However, the quote has also variously been attributed to Picasso, Salvatore Dali and Friedensreich Hundertwasser.
Disputed
Source: "Symmetry is the aesthetics of the stupid." Mies van der Rohe (allegedly), 2018-01-21, 2017-11-12 http://falschzitate.blogspot.com/2017/11/symmetrie-ist-die-asthetik-der-dummen.html,

as quoted in an interview by Matthew Chalmers: [Model physicist, CERN Courier, 13 October 2017, http://cerncourier.com/cws/article/cern/70138]

"Reminiscences of the Standard Model" - Special Colloquium by Steven Weinberg https://www.youtube.com/watch?v=mX2R8-nJhLQ, 17 October 2017, YouTube video at 1:02:17 of 1:39:24

Preface Letter to Pope Paul III, Tr. E. Rosen, De Revolutionibus Orbium Coelestium (1978) pp. 4-7.
De revolutionibus orbium coelestium (1543)
Context: Those who devised the eccentrics seen thereby in large measure to have solved the problem of apparent motions with approximate calculations. But meanwhile they introduced a good many ideas which apparently contradict the first principles of uniform motion. Nor could they elicit or deduce from the eccentrics the principal consideration, that is, the structure of the universe and the true symmetry of its parts. On the contrary, their experience was just like someone taking from various places hands, feet, a head, and other pieces, very well depicted it may be, but for the representation of a single person; since these fragments would not belong to one another at all, a monster rather than a man would be put together from them.

“Human behavior is messy and unpredictable and unconcerned with convenient symmetries.”
Source: And the Mountains Echoed

Book II, Ch. 2, p. 283.
Le livre du ciel et du monde (1377)

Source: Why Stock Markets Crash - Critical Events in Complex Systems (2003), Chapter 5, Modeling Financial Bubbles And Market Crashes, p. 136

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book V, Chapter VI, Sec. 7

Quote from his unpublished writing, 'Fundamental principles', 1930; as cited in Theo van Doesburg, Joost Baljeu, Studio Vista, London 1974, p. 203
1926 – 1931

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book II, Chapter I, Sec. 7
p. 1

The Method of Teaching and Studying the Belles Lettres, Vol. I, The Third Edition (1742), Part II, Ch. 2: 'General Reflections upon what is called good Taste', pp. 45–46

Quote in Delacroix's Journal of 19 September 1847; as cited in Artists on Art – from the 14th – 20th centuries, ed. by Robert Goldwater and Marco Treves; Pantheon Books, 1972, London, p. 229
1831 - 1863
Source: Mother of Storms (1994), pp. 470-471
Source: Color, Format and Abstract Art' (1977), pp. 99 – 105
Foreword to The Selfish Gene by Richard Dawkins (1976)

As quoted by A. D'Abro, The Evolution of Scientific Thought from Newton to Einstein https://archive.org/details/TheEvolutionOfScientificThought (1927)

“Consistency is the enemy of enterprise, just as symmetry is the enemy of art.”
As quoted in Bernard Shaw : The Lure of Fantasy (1991) by Michael Holroyd
1940s and later
Pierre Curie's Principle of One Way-Process (1970)

“To let the reader complete the symmetry between words and do no more than suggest it.”
Source: The Romantic Rebellion (1973), Ch. 13: Degas

Vol. 2, p. 209; "Miscellany III".
Characteristicks of Men, Manners, Opinions, Times (1711)

Source Book in Ancient Philosophy (1907), The Golden Sayings of Democritus

1880s, The Future of the Colored Race (1886)

“To find out where the origin of symmetry is would be to find out if God exists.”
Rock Sound Spain magazine, 2001-07-31
Introduction; Quoted in: " Fundamentals of Measurement and Representation of Natural Systems by Robert Rosen http://www.panmere.com/?page_id=15" at panmere.com.
Fundamentals of measurement and representation of natural systems. (1978)
Source: Dachau 1974, by Beryl Korot, p. 75

Source: The Charm of Physics (1991), p. 244

“Architecture depends on Order, Arrangement, Eurythmy, Symmetry, Propriety, and Economy.”
Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book I, Chapter II "The Fundamental Principles of Architecture" Sec. 1

“One of the chief chores in the next economy is to restore the symmetry of knowledge.”
Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995), New Rules for the New Economy: 10 Radical Strategies for a Connected World (1999)

“Symmetry is overrated. Overrated is symmetry.”
[6vhq4r%24a6i@kiev.wall.org, 1998]
Usenet postings, 1998

1920s, The Democracy of Sports (1924)

Source: Presidential Address British Association for the Advancement of Science, Section A (1910), pp. 285-286; Cited in: Moritz (1914, 229): Mathematics and Science.

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book III, Chapter I, Sec. 1

As quoted in His Brother's Blood: Speeches and Writings, 1838–64 https://books.google.com/books?id=qMEv8DNXVbIC&pg=PA177 (2004), edited by William Frederick Moore and Jane Ann Moore, p. 177
1850s, The Fanaticism of the Democratic Party (February 1859)

Nature's greatest puzzles. http://arxiv.org/PS_cache/hep-ph/pdf/0502/0502070v1.pdf SLAC Summer Institute 2004, p. 9.
Pages 46-47
The Listening Composer

Five big questions with pretty simple answers, IBM Journal of Research and Development, 48, 1, January 2004, 31–45 https://ieeexplore.ieee.org/abstract/document/5388918/,

R. N. Shepard, (1994). "Perceptual-cognitive universals as reflections of the world." Psychonomic Bulletin and Review, 1, 2–28.

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book I, Chapter I, Sec. 4

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book III, Chapter III, Sec. 8

As quoted in 777 Mathematical Conversation Starters http://books.google.co.in/books?id=JNbKURWmODkC&pg=PA172 (2002) by John de Pillis, p. 172

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book VI, Chapter VIII, Sec. 9

Source: Quotes, 1960 - 1970, Questions to Stella and Judd' - September 1966, p. 118

Source: Quotes, 1960 - 1970, Questions to Stella and Judd' - September 1966, p. 118

Longing for the Harmonies: Themes and Variations from Modern Physics (1987)

Source: The Thread That Binds the Bones (1993), Chapter 21 (p. 297)

(2002 wager, 18 year duration) [Bet 12 (John Horgan vs. Michio Kaku), longbets.org, http://longbets.org/12/]

Visions- the coming revolutions of particle physics. http://xxx.uni-augsburg.de/pdf/hep-ph/0204075v1 2002, p. 5.
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 112.

The Book of Universes: Exploring the Limits of the Cosmos (2011)
Context: Aristotle believed that the world did not come into being at some time in the past; it had always existed and it would always exist, unchanged in essence for ever. He placed a high premium on symmetry and believed that the sphere was the most perfect of all shapes. Hence the universe must be spherical.... An important feature of the spherical shape... was the fact that when a sphere rotates it does not cut into empty space where there is no matter and it leaves no empty space behind.... A vacuum was impossible. It could no more exist than an infinite physical quantity.... Circular motion was the most perfect and natural movement of all.<!--ch. 1, pp. 12-13

The Snow Leopard (1978)
Context: The progress of the sciences toward theories of fundamental unity, cosmic symmetry (as in the unified field theory) — how do such theories differ, in the end, from that unity which Plato called “unspeakable” and “indiscribable,” the holistic knowledge shared by so many peoples of the earth, Christians included, before the advent of the industrial revolution made new barbarians of the peoples of the West? In the United States, before spiritualist foolishness at the end of the last century confused mysticism with “the occult” and tarnished both, William James wrote a master work of metaphysics; Emerson spoke of “the wise silence, the universal beauty, to which every part and particle is equally related, the eternal One . . .”; Melville referred to “that profound silence, that only voice of God”; Walt Whitman celebrated the most ancient secret, that no God could be found “more divine than yourself.” And then, almost everywhere, a clear and subtle illumination that lent magnificence to life and peace to death was overwhelmed in the hard glare of technology. Yet that light is always present, like the stars of noon. Man must perceive it if he is to transcend his fear of meaningless, for no amount of “progress” can take its place. We have outsmarted ourselves, like greedy monkeys, and now we are full of dread.

Preface of the 1969 edition of Fearful Symmetry : A Study of William Blake (1947)
"Quotes", Fearful Symmetry : A Study of William Blake (1947)
Context: I wrote Fearful Symmetry during the Second World War, and hideous as the time was, it provided some parallels with Blake's time which were useful for understanding Blake's attitude to the world. Today, now that reactionary and radical forces alike are once more in the grip of the nihilistic psychosis that Blake described so powerful in Jerusalem, one of the most hopeful signs is the immensely increased sense of the urgency and immediacy of what Blake had to say.

[Mirror symmetry and elliptic curves by Robert Dijkgraaf, The moduli space of curves, 149–163, Progress in Mathematics, vol. 129, Birkhäuser Boston, 1995, 10.1007/978-1-4612-4264-2_5]

The Book of Universes: Exploring the Limits of the Cosmos (2011)

" Physicist Marcelo Gleiser Asks the Big Questions" https://news.dartmouth.edu/news/2011/08/physicist-marcelo-gleiser-asks-big-questions, dartmouth.edu (August 26, 2011)