Number Quotes (45)
'Conservation' (the conservation law) means this ... that there is a number, which you can calculate, at one moment—and as nature undergoes its multitude of changes, this number doesn't change. That is, if you calculate again, this quantity, it'll be the same as it was before. An example is the conservation of energy: there's a quantity that you can calculate according to a certain rule, and it comes out the same answer after, no matter what happens, happens.
'The Great Conservation Principles', The Messenger Series of Lectures, No. 3, Cornell University, 1964. From transcript of BBC programme (11 Dec 1964).
See also: | Calculation (8) | Change (40) | Conservation (24) | Energy (38) | Law (134) | Nature (243)
Die ganzen Zahlen hat der liebe Gatt gemacht, alles andere ist Menschenwerk.
The dear God has made the whole numbers, all the rest is man's work.
The dear God has made the whole numbers, all the rest is man's work.
Speech at the Berlin meeting of the Society of German Scientists and Doctors in 1886, published in Jahreshericht der Deutschen Mathematiker-Vereinigung. Trans. obituary of Kronecker by H. E. Weber, Year Book of the Gennan Mathematics Association, 1893, 19.
See also: | God (121)
Tolle numerum omnibus rebus et omnia pereunt.
Take from all things their number and all shall perish.
Take from all things their number and all shall perish.
Etymologies [c.600], Book III, chapter 4, quoted in E. Grant (ed.), A Source Book in Medieval Science (1974), trans. E. Brehaut (1912), revised by E. Grant, 5.
See also: | Measurement (62)
All is number
Quoted in Robert J. Scully, The Demon and the Quantum (2007), 7.
All the mathematical sciences are founded on relations between physical laws and laws of numbers, so that the aim of exact science is to reduce the problems of nature to the determination of quantities by operations with numbers.
from Faraday's Lines of Force (1856)
All the modern higher mathematics is based on a calculus of operations, on laws of thought. All mathematics, from the first, was so in reality; but the evolvers of the modern higher calculus have known that it is so. Therefore elementary teachers who, at the present day, persist in thinking about algebra and arithmetic as dealing with laws of number, and about geometry as dealing with laws of surface and solid content, are doing the best that in them lies to put their pupils on the wrong track for reaching in the future any true understanding of the higher algebras. Algebras deal not with laws of number, but with such laws of the human thinking machinery as have been discovered in the course of investigations on numbers. Plane geometry deals with such laws of thought as were discovered by men intent on finding out how to measure surface; and solid geometry with such additional laws of thought as were discovered when men began to extend geometry into three dimensions.
Lectures on the Logic of Arithmetic (1903), Preface, 18-19.
See also: | Algebra (11) | Arithmetic (19) | Calculus (12) | Dimension (6) | Discovery (166) | Geometry (38) | Investigation (25) | Measurement (62) | Operation (12) | Solid (3) | Surface (6) | Teacher (26) | Thinking (56) | Understanding (94) | Wrong (9)
All the modern higher mathematics is based on a calculus of operations, on laws of thought. All mathematics, from the first, was so in reality; but the evolvers of the modern higher calculus have known that it is so. Therefore elementary teachers who, at the present day, persist in thinking about algebra and arithmetic as dealing with laws of number, and about geometry as dealing with laws of surface and solid content, are doing the best that in them lies to put their pupils on the wrong track for reaching in the future any true understanding of the higher algebras. Algebras deal not with laws of number, but with such laws of the human thinking machinery as have been discovered in the course of investigations on numbers. Plane geometry deals with such laws of thought as were discovered by men intent on finding out how to measure surface; and solid geometry with such additional laws of thought as were discovered when men began to extend geometry into three dimensions.
Lectures on the Logic of Arithmetic (1903), Preface, 18-19.
See also: | Algebra (11) | Arithmetic (19) | Calculus (12) | Dimension (6) | Discovery (166) | Geometry (38) | Investigation (25) | Measurement (62) | Operation (12) | Solid (3) | Surface (6) | Teacher (26) | Thinking (56) | Understanding (94) | Wrong (9)
Bistromathics itself is simply a revolutionary new way of understanding the behavior of numbers. Just as Einstein observed that space was not an absolute but depended on the observer's movement in space, and that time was not an absolute, but depended on the observer's movement in time, so it is now realized that numbers are not absolute, but depend on the observer's movement in restaurants.
Life, the Universe and Everything (1982, 1995), 47.
Borel makes the amusing supposition of a million monkeys allowed to play upon the keys of a million typewriters. What is the chance that this wanton activity should reproduce exactly all of the volumes which are contained in the library of the British Museum? It certainly is not a large chance, but it may be roughly calculated, and proves in fact to be considerably larger than the chance that a mixture of oxygen and nitrogen will separate into the two pure constituents. After we have learned to estimate such minute chances, and after we have overcome our fear of numbers which are very much larger or very much smaller than those ordinarily employed, we might proceed to calculate the chance of still more extraordinary occurrences, and even have the boldness to regard the living cell as a result of random arrangement and rearrangement of its atoms. However, we cannot but feel that this would be carrying extrapolation too far. This feeling is due not merely to a recognition of the enormous complexity of living tissue but to the conviction that the whole trend of life, the whole process of building up more and more diverse and complex structures, which we call evolution, is the very opposite of that which we might expect from the laws of chance.
The Anatomy of Science (1926), 158-9.
See also: | Atom (85) | Émile Borel (2) | Calculate (2) | Cell (43) | Chance (33) | Complexity (18) | Complexity (18) | Conviction (5) | Diversity (16) | Evolution (229) | Extraordinary (3) | Library (12) | Life (155) | Life (155) | Monkey (10) | Nitrogen (5) | Opposite (8) | Oxygen (13) | Structure (33) | Tissue (6) | Typewriter (5)
De Morgan was explaining to an actuary what was the chance that a certain proportion of some group of people would at the end of a given time be alive; and quoted the actuarial formula, involving p [pi], which, in answer to a question, he explained stood for the ratio of the circumference of a circle to its diameter. His acquaintance, who had so far listened to the explanation with interest, interrupted him and exclaimed, 'My dear friend, that must be a delusion, what can a circle have to do with the number of people alive at a given time?'
Mathematical Recreations and Problems (1896), 180; See also De Morgan's Budget of Paradoxes (1872), 172.
See also: | Anecdote (14) | Answer (24) | Chance (33) | Circle (3) | Circumference (2) | Death (91) | Augustus De Morgan (21) | Diameter (2) | Explanation (20) | Formula (16) | Group (2) | Interest (6) | Pi (3) | Proportion (6) | Question (45) | Ratio (2)
Defendit numerus: There is safety in numbers.
Latin proverb, first recorded in English about 1550. In James Roy Newman (ed.) The World of Mathematics (1956), Vol. 3, 1452.
See also: | Safety (8)
I never could do anything with figures, never had any talent for mathematics, never accomplished anything in my efforts at that rugged study, and to-day the only mathematics I know is multiplication, and the minute I get away up in that, as soon as I reach nine times seven— [He lapsed into deep thought, trying to figure nine times seven. Mr. McKelway whispered the answer to him.] I've got it now. It's eighty-four. Well, I can get that far all right with a little hesitation. After that I am uncertain, and I can't manage a statistic.
Speech at the New York Association for Promoting the Interests of the Blind (29 Mar 1906). In Mark Twain and William Dean Howells (ed.), Mark Twain's Speeches? (1910), 323.
See also: | Effort (6) | Figure (3) | Mathematics (221) | Multiplication (2) | Rugged (2) | Statistics (49) | Study (33) | Talent (12)
I remember once going to see him when he was lying ill at Putney. I had ridden in taxi cab number 1729 and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavorable omen. 'No,' he replied, 'it is a very interesting number; it is the smallest number expressible as the sum of two cubes in two different ways.'
Quoted in G.H. Hardy, Ramanujan; twelve lectures on subjects suggested by his life and work (1940, reprint 1999), 12.
If we take in our hand any volume; of divinity or school metaphysics, for instance; let us ask, Does it contain any abstract reasoning concerning quantity or number? No. Does it contain any experimental reasoning concerning matter of fact and existence? No. Commit it then to the flames: for it can contain nothing but sophistry and illusion.
An Enquiry Concerning Human Understanding (1748), ed. L. A. Selby-Bigge (1894), section 12, part 3, 165.
See also: | Abstract (5) | Existence (44) | Experiment (199) | Fact (139) | Flame (7) | Illusion (6) | Quantity (6) | Reason (69) | Sophistry (2)
In place of infinity we usually put some really big number, like 15.
Perhaps referring to the programmer's hexadecimal counting scheme which has 16 digits (0-0 followed by digits A-F), useful in binary context as a power of 2.
Perhaps referring to the programmer's hexadecimal counting scheme which has 16 digits (0-0 followed by digits A-F), useful in binary context as a power of 2.
Attributed to a Computer Science Professor on various web pages. Webmaster has found no print source for this wording and comments, but its originality makes it worthy of inclusion here. Webmaster comments: perhaps one of those infinite number of monkeys typed it! Please make contact if you know a primary print source.
It is agreed that all sound which is the material of music is of three sorts. First is harmonica, which consists of vocal music; second is organica, which is formed from the breath; third is rhythmica, which receives its numbers from the beat of the fingers. For sound is produced either by the voice, coming through the throat; or by the breath, coming through the trumpet or tibia, for example; or by touch, as in the case of the cithara or anything else that gives a tuneful sound on being struck.
Etymologies [c.600], Book III, chapter 19, quoted in E. Grant (ed.), A Source Book in Medieval Science (1974), trans. E. Brehaut (1912), revised by E. Grant, 10.
It is known that there is an infinite number of worlds, but that not every one is inhabited. Therefore, there must be a finite number of inhabited worlds. Any finite number divided by infinity is as near to nothing as makes no odds, so if every planet in the Universe has a populations of zero then the entire population of the Universe must also be zero, and any people you may actually meet from time to time are merely the products of a deranged imagination.
'Fit the Fifth', The Original Hitchhiker Radio Script, 102. In Alma E. Cavazos-Gaither, Mathematically Speaking (1998), 58.
See also: | Finite (7) | Imagination (50) | Infinite (10) | Inhabitant (2) | Planet (34) | Population (18) | Universe (138) | World (45)
It is strange that we know so little about the properties of numbers. They are our handiwork, yet they baffle us; we can fathom only a few of their intricacies. Having defined their attributes and prescribed their behavior, we are hard pressed to perceive the implications of our formulas.
'The Mysteries of Arithmetic: Commentary', The World of Mathematics (2000), Vol. 1, 497.
It seems to me, that the only objects of the abstract sciences or of demonstration are quantity and number, and that all attempts to extend this more perfect species of knowledge beyond these bounds are mere sophistry and illusion.
An Enquiry Concerning Human Understanding (1748), ed. L. A. Selby-Bigge (1894), section 7, part 3, 163.
See also: | Demonstration (10) | Illusion (6) | Knowledge (330) | Quantity (6) | Science (444) | Sophistry (2)
Number is divided into even and odd. Even number is divided into the following: evenly even, evenly uneven, and unevenly uneven. Odd number is divided into the following: prime and incomposite, composite, and a third intermediate class (mediocris) which in a certain way is prime and incomposite but in another way secondary and composite.
Etymologies [c.600], Book III, chapter 5, quoted in E. Grant (ed.), A Source Book in Medieval Science (1974), trans. E. Brehaut (1912), revised by E. Grant, 5.
Number is the within of all things.
Attributed as a concept rather than actual words (none of the original writings of Pythagoras have survived). In L. A. Michael, The Principles of Existence & Beyond (2007), 16, but webmaster is unable to validate or find in quote dictionaries.
Numbers written on restaurant checks [bills] within the confines of restaurants do not follow the same mathematical laws as numbers written on any other pieces of paper in any other parts of the Universe.
This single statement took the scientific world by storm. It completely revolutionized it. So many mathematical conferences got held in such good restaurants that many of the finest minds of a generation died of obesity and heart failure and the science of math was put back by years.
This single statement took the scientific world by storm. It completely revolutionized it. So many mathematical conferences got held in such good restaurants that many of the finest minds of a generation died of obesity and heart failure and the science of math was put back by years.
Life, the Universe and Everything (1982, 1995), 49.
See also: | Bill (3) | Conference (2) | Death (91) | Law (134) | Mathematics (221) | Obesity (4) | Restaurant (3) | Universe (138)
O comfortable allurement, O ravishing perswasion, to deal with a Science, whose subject is so Auncient, so pure, so excellent, so surmounting all creatures... By Numbers propertie ... we may... arise, clime, ascend, and mount up (with Speculative winges) in spirit, to behold in the Glas of creation, the Forme of Formes, the Exemplar Number of all things Numerable... Who can remaine, therefore, unpersuaded, to love, allow, and honor the excellent sciehce of Arithmatike?
— John Dee
'Mathematicall Preface', in H. Billingsley, trans. The Elements of Geometry of the most Aunceint Philosopher Euclide of Megara (1570), in J. L. Hellbron, Weighing Imponderables and Other Quantitative Science around 1800 (1993), 2.
See also: | Arithmetic (19)
Referring to the decimal system of numeration or its equivalent (with some base other than 10): To what heights would science now be raised if Archimedes had made that discovery!
Gauss regarded this oversight as the greatest calamity in the history of science.
Gauss regarded this oversight as the greatest calamity in the history of science.
Quoted in James Roy Newman, The World of Mathematics, 328.
Standard mathematics has recently been rendered obsolete by the discovery that for years we have been writing the numeral five backward. This has led to reevaluation of counting as a method of getting from one to ten. Students are taught advanced concepts of Boolean algebra, and formerly unsolvable equations are dealt with by threats of reprisals.
Getting Even (1978), 44.
Statistician: A man who believes figures don't lie but admits that, under analysis some of them won't stand up either.
The Dictionary of Humorous Quotations (1949). In Robert Harris Shutler, Mathematics 436 - Finely Explained (2004), 3.
Statistics: The only science that enables different experts using the same figures to draw different conclusions.
The Dictionary of Humorous Quotations (1949). In Robert Harris Shutler, Mathematics 436 - Finely Explained (2004), 3.
See also: | Conclusion (24) | Definition (25) | Different (5) | Expert (7) | Quip (58) | Statistics (49)
That this subject [of imaginary magnitudes] has hitherto been considered from the wrong point of view and surrounded by a mysterious obscurity, is to be attributed largely to an ill-adapted notation. If, for example, +1, -1, and the square root of -1 had been called direct, inverse and lateral units, instead of positive, negative and imaginary (or even impossible), such an obscurity would have been out of the question.
Theoria Residiorum Biquadraticorum, Commentario secunda', Werke (1863), Vol. 2. Quoted in Robert Edouard Moritz, Memorabilia Mathematica (1914), 282.
The Qualities then that are in Bodies rightly considered, are of Three sorts.
First, the Bulk, Figure, Number, Situation, and Motion, or Rest of their solid Parts; those are in them, whether we perceive them or no; and when they are of that size, that we can discover them, we have by these an Idea of the thing, as it is in it self, as is plain in artificial things. These I call primary Qualities.
Secondly, The Power that is in any Body, by Reason of its insensible primary Qualities, to operate after a peculiar manner on any of our Senses, and thereby produce in us the different Ideas of several Colours, Sounds, Smells, Tastes, etc. These are usually called sensible Qualities.
Thirdly, The Power that is in any Body, by Reason of the particular Constitution of its primary Qualities, to make such a change in the Bulk, Figure, Texture, and Motion of another Body, as to make it operate on our Senses, differently from what it did before. Thus the Sun has a Power to make Wax white, and Fire to make Lead fluid. These are usually called Powers.
First, the Bulk, Figure, Number, Situation, and Motion, or Rest of their solid Parts; those are in them, whether we perceive them or no; and when they are of that size, that we can discover them, we have by these an Idea of the thing, as it is in it self, as is plain in artificial things. These I call primary Qualities.
Secondly, The Power that is in any Body, by Reason of its insensible primary Qualities, to operate after a peculiar manner on any of our Senses, and thereby produce in us the different Ideas of several Colours, Sounds, Smells, Tastes, etc. These are usually called sensible Qualities.
Thirdly, The Power that is in any Body, by Reason of the particular Constitution of its primary Qualities, to make such a change in the Bulk, Figure, Texture, and Motion of another Body, as to make it operate on our Senses, differently from what it did before. Thus the Sun has a Power to make Wax white, and Fire to make Lead fluid. These are usually called Powers.
An Essay Concerning Human Understanding (1690). Edited by Peter Nidditch (1975), Book 2, Chapter 8, Section 23, 140-1.
See also: | Colour (11) | Figure (3) | Fire (18) | Idea (83) | Lead (8) | Motion (24) | Quality (5) | Rest (7) | Sense (32) | Situation (2) | Smell (4) | Sound (4) | Sun (37) | Taste (5) | Wax (2)
The answer to the Great Question of … Life, the Universe and Everything … is Forty-two
The Hitch Hiker's Guide to the Galaxy (1979), Chapter 27.
The faculty for remembering is not diminished in proportion to what one has learnt, just as little as the number of moulds in which you cast sand lessens its capacity for being cast in new moulds.
Religion: a Dialogue, and Other Essays (1890), 99.
See also: | Capacity (5) | Diminish (3) | Faculty (5) | Learn (11) | Memory (15) | Mould (5) | Proportion (6) | Remember (6) | Sand (4)
The first nonabsolute number is the number of people for whom the table is reserved. This will vary during the course of the first three telephone calls to the restaurant, and then bear no apparent relation to the number of people who actually turn up, or to the number of people who subsequently join them after the show/match/party/gig, or to the number of people who leave when they see who else has turned up.
The second nonabsolute number is the given time of arrival, which is now known to be one of the most bizarre of mathematical concepts, a recipriversexcluson, a number whose existence can only be defined as being anything other than itself. In other words, the given time of arrival is the one moment of time at which it is impossible that any member of the party will arrive. Recipriversexclusons now play a vital part in many branches of math, including statistics and accountancy and also form the basic equations used to engineer the Somebody Else's Problem field.
The third and most mysterious piece of nonabsoluteness of all lies in the relationship between the number of items on the check [bill], the cost of each item, the number of people at the table and what they are each prepared to pay for. (The number of people who have actually brought any money is only a subphenomenon of this field.)
The second nonabsolute number is the given time of arrival, which is now known to be one of the most bizarre of mathematical concepts, a recipriversexcluson, a number whose existence can only be defined as being anything other than itself. In other words, the given time of arrival is the one moment of time at which it is impossible that any member of the party will arrive. Recipriversexclusons now play a vital part in many branches of math, including statistics and accountancy and also form the basic equations used to engineer the Somebody Else's Problem field.
The third and most mysterious piece of nonabsoluteness of all lies in the relationship between the number of items on the check [bill], the cost of each item, the number of people at the table and what they are each prepared to pay for. (The number of people who have actually brought any money is only a subphenomenon of this field.)
Life, the Universe and Everything (1982, 1995), 47-48.
See also: | Absolute (4) | Bill (3) | Concept (14) | Cost (4) | Engineering (35) | Equation (24) | Existence (44) | Mathematics (221) | Money (69) | Party (2) | Person (4) | Restaurant (3) | Statistics (49) | Telephone (9) | Time (55)
The judicial mind is too commonly characterized by a regard for a fourth decimal as the equal of a whole number.
The method of producing these numbers is called a sieve by Eratosthenes, since we take the odd numbers mingled and indiscriminate and we separate out of them by this method of production, as if by some instrument or sieve, the prime and incomposite numbers by themselves, and the secondary and composite numbers by themselves, and we find separately those that are mixed.
Nicomachus, Introduction to Arithmetic, 1.13.2. Quoted in Morris R. Cohen and I. E. Drabkin, A Sourcebook in Greek Science (1948), 19-20.
See also: | Arithmetic (19)
The methods of theoretical physics should be applicable to all those branches of thought in which the essential features are expressible with numbers.
Nobel Prize Banquet Speech (10 Dec1933). In Carl Gustaf Santesson (Ed.), Les Prix Nobel en 1933 (1935), 78
See also: | Theoretical Physics (5)
The problem of distinguishing prime numbers from composite numbers and of resolving the latter into their prime factors is known to be one of the most important and useful in arithmetic. It has engaged the industry and wisdom of ancient and modern geometers to such an extent that it would be superfluous to discuss the problem at length... Further, the dignity of the science itself seems to require that every possible means be explored for the solution of a problem so elegant and so celebrated.
Disquisitiones Arithmeticae (1801), Article 329
The transfinite numbers are in a sense the new irrationalities [ ... they] stand or fall with the finite irrational numbers.
Gesammelte Abhandlungen (1932),395, trans. Ivor Grattan-Guinness.
See also: | Mathematics (221)
There is more danger of numerical sequences continued indefinitely than of trees growing up to heaven. Each will some time reach its greatest height.
Grundgesetz der Arithmetik(1893), Vol. 2, Section 60, In P. Greach and M. Black (eds., Translations from the Philosophical Writings of Gottlob Frege (1952), 204.
See also: | Series (7)
Those who think 'Science is Measurement' should search Darwin's works for numbers and equations.
'David H. Hubel', in Larry R. Squire (ed.), The History of Neuroscience in Autobiography (1996), Vol. 1, 313.
To a mathematician the eleventh means only a single unit: to the bushman who cannot count further than his ten fingers it is an incalculable myriad.
'Maxims for Revolutionists', in Man and Superman (1905), 236.
See also: | Mathematician (66)
Truly I say to you, a single number has more genuine and permanent value than an expensive library full of hypotheses.
Letter to Griesinger (20 Jul 1844). In Jacob J. Weyrauch (ed.), Kleinere Schriften und Briefe von Robert Milyer, nebst Mittheilungen aus seinem Leben (1893), 226. Trans. Kenneth L. Caneva, Robert Mayer and the Conservation of Energy (1993), 37.
See also: | Expensive (2) | Genuine (3) | Hypothesis (83) | Library (12) | Library (12) | Value (10)
We must admit with humility that, while number is purely a product of our minds, space has a reality outside our minds, so that we cannot completely prescribe its properties a priori.
Letter to Friedrich Bessel (1830).
Whenever a man can get hold of numbers, they are invaluable: if correct, they assist in informing his own mind, but they are still more useful in deluding the minds of others. Numbers are the masters of the weak, but the slaves of the strong.
Passages From the Life of a Philosopher (1864), 410.
Wherever there is number, there is beauty.
— Proclus
Quoted in Morris Kline, Mathematical Thought from Ancient to Modern Times (1990), Vol. 1, 131.
See also: | Beauty (33)
[Boswell]: Sir Alexander Dick tells me, that he remembers having a thousand people in a year to dine at his house: that is, reckoning each person as one, each time that he dined there. [Johnson]: That, Sir, is about three a day. [Boswell]: How your statement lessens the idea. [Johnson]: That, Sir, is the good of counting. It brings every thing to a certainty, which before floated in the mind indefinitely.
Entry for Fri 18 Apr 1783. In George Birkbeck-Hill (ed.), Boswell's Life of Johnson (1934-50), Vol. 4, 204.