Ronald Fisher quotes
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“To consult the statistician after an experiment is finished is often merely to ask him to conduct a post mortem examination. He can perhaps say what the experiment died of.”
-- Ronald FisherSource : Presidential Address to the First Indian Statistical Congress, Sankhya 4, 14-17, 1938.
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“The best time to plan an experiment is after you've done it.”
-- Ronald Fisher -
“We have the duty of formulating, of summarizing, and of communicating our conclusions, in intelligible form, in recognition of the right of other free minds to utilize them in making their own decisions.”
-- Ronald FisherSource : "Chances Are: Adventures in Probability". Book by Michael Kaplan and Ellen Kaplan, 2003.
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“The statistician cannot evade the responsibility for understanding the process he applies or recommends.”
-- Ronald Fisher#Responsibility Quotes #Understanding Quotes #Process Quotes
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“Faith does not mean credulity...”
-- Ronald FisherSource : "Statistical Methods and Scientific Inference". Book by Ronald Fisher, 1956.
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“The more highly adapted an organism becomes, the less adaptable it is to any new change.”
-- Ronald Fisher -
“Natural selection is a mechanism for generating an exceedingly high degree of improbability.”
-- Ronald FisherSource : "Evolution in Action". Book by Julian S. Huxley, 1953.
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“The tendency of modern scientific teaching is to neglect the great books, to lay far too much stress upon relatively unimportant modern work, and to present masses of detail of doubtful truth and questionable weight in such a way as to obscure principles.”
-- Ronald Fisher -
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“The analysis of variance is not a mathematical theorem, but rather a convenient method of arranging the arithmetic.”
-- Ronald FisherSource : "Statistics in agricultural research". Journal of the Royal Statistical Society, 1934.
#Science Quotes #Pythagorean Theorem Quotes #Analysis Quotes
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“[Coining phrase "null hypothesis"] In relation to any experiment we may speak of this hypothesis as the "null hypothesis," and it should be noted that the null hypothesis is never proved or established, but is possibly disproved, in the course of experimentation. Every experiment may be said to exist only in order to give the facts a chance of disproving the null hypothesis.”
-- Ronald FisherSource : "The Design of Experiments". Book by Ronald Fisher, 1935.
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“Modern statisticians are familiar with the notion that any finite body of data contains only a limited amount of information on any point under examination; that this limit is set by the nature of the data themselves, and cannot be increased by any amount of ingenuity expended in their statistical examination: that the statistician's task, in fact, is limited to the extraction of the whole of the available information on any particular issue.”
-- Ronald Fisher -
“The statistician cannot excuse himself from the duty of getting his head clear on the principles of scientific inference, but equally no other thinking man can avoid a like obligation.”
-- Ronald Fisher -
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“No isolated experiment, however significant in itself, can suffice for the experimental demonstration of any natural phenomenon; for the "one chance in a million" will undoubtedly occur, with no less and no more than its appropriate frequency, however surprised we may be that it should occur to us.”
-- Ronald Fisher -
“The million, million, million ... to one chance happens once in a million, million, million ... times no matter how surprised we may be that it results in us.”
-- Ronald FisherSource : "Heredity" Journal, 1973.
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“In scientific subjects, the natural remedy for dogmatism has been found in research.”
-- Ronald FisherSource : "Eugenics, academic and practical". "The Eugenics Review" Journal, 1935.
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“If one in twenty does not seem high enough odds, we may, if we prefer it, draw the line at one in fifty (the 2 per cent. point), or one in a hundred (the 1 per cent. point). Personally, the writer prefers to set a low standard of significance at the 5 per cent. point, and ignore entirely all results which fail to reach this level. A scientific fact should be regarded as experimentally established only if a properly designed experiment rarely fails to give this level of significance.”
-- Ronald Fisher -
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“No aphorism is more frequently repeated in connection with field trials, than that we must ask Nature few questions, or, ideally, one question, at a time. The writer is convinced that this view is wholly mistaken. Nature, he suggests, will best respond to a logical and carefully thought out questionnaire; indeed, if we ask her a single question, she will often refuse to answer until some other topic has been discussed.”
-- Ronald Fisher -
“I believe that no one who is familiar, either with mathematical advances in other fields, or with the range of special biological conditions to be considered, would ever conceive that everything could be summed up in a single mathematical formula, however complex.”
-- Ronald FisherSource : "The evolutionary modification of genetic phenomena". Ronald Fisher, proceedings of the 6th International Congress of Genetics 1, 1932.
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“... no scientific worker has a fixed level of significance at which from year to year, and in all circumstances, he rejects hypotheses; he rather gives his mind to each particular case in the light of his evidence and his ideas.”
-- Ronald Fisher -
“No efforts of mine could avail to make the book easy reading.”
-- Ronald FisherSource : "The Genetical Theory of Natural Selection". Book by Ronald Fisher, 1930.
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“I believe sanity and realism can be restored to the teaching of Mathematical Statistics most easily and directly by entrusting such teaching largely to men and women who have had personal experience of research in the Natural Sciences.”
-- Ronald Fisher -
“If ... we choose a group of social phenomena with no antecedent knowledge of the causation or absence of causation among them, then the calculation of correlation coefficients, total or partial, will not advance us a step toward evaluating the importance of the causes at work.”
-- Ronald Fisher -
“The best causes tend to attract to their support the worst arguments, which seems to be equally true in the intellectual and in the moral sense.”
-- Ronald FisherSource : "Statistical Methods and Scientific Inference". Book by Ronald Fisher, 1956.
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“... the actual and physical conduct of an experiment must govern the statistical procedure of its interpretation.”
-- Ronald Fisher#Statistics Quotes #Interpretation Quotes #Procedures Quotes
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“However, perhaps the main point is that you are under no obligation to analyse variance into its parts if it does not come apart easily, and its unwillingness to do so naturally indicates that one's line of approach is not very fruitful.”
-- Ronald Fisher
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