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 More Quotes by Ronald Fisher More Quotes From Ronald Fisher We have usually no knowledge that any one factor will exert its effects independently of all others that can be varied, or that its effects are particularly simply related to variations in these other factors. Ronald Fisher variation experiments science The academic mind, as we know, is sometimes capable of assuming an aggressive attitude. The official mind, on the contrary, is and has to be, expert in the art of self-defence. Ronald Fisher self attitude art 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 Fisher chance matter may The so-called co-efficient of heritability, which I regard as one of those unfortunate short-cuts, which have often emerged in biometry for lack of a more thorough analysis of the data. Ronald Fisher data analysis cutting After all, it is a common weakness of young authors to put too much into their papers. Ronald Fisher weakness too-much paper We may consequently state the fundamental theorem of Natural Selection in the form: The rate of increase in fitness of any organism at any time is equal to its genetic variance in fitness at that time. Ronald Fisher fundamentals natural may Fairly large print is a real antidote to stiff reading. Ronald Fisher print real reading ... the actual and physical conduct of an experiment must govern the statistical procedure of its interpretation. Ronald Fisher interpretation procedures statistics [Coining the phrase "test of significance"] Critical tests of this kind may be called tests of significance, and when such tests are available we may discover whether a second sample is or is not significantly different from the first. Ronald Fisher phrases different may 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 Fisher support intellectual science We can set no limit to human potentialities; all that is best in man can be bettered; it is not a question of producing a highly efficient machine, ... but of quickening all the distinctly human features, all that is best in man, all the different qualities, some obvious, some infinitely subtle, which we recognize as humanly excellent. Ronald Fisher quality different men Natural selection is not evolution. Ronald Fisher natural-selection evolution natural Natural selection is a mechanism for generating an exceedingly high degree of improbability. Ronald Fisher degrees statistics math Inductive inference is the only process known to us by which essentially new knowledge comes into the world. Ronald Fisher science world knowledge Although no explanation can be expected to be satisfactory, it remains a possibility among others that Mendel was deceived by some assistant who knew too well what was expected. This possibility is supported by independent evidence that the data of most, if not all, of the experiments have been falsified so as to agree closely with Mendel's expectations. Ronald Fisher data independent expectations No practical biologist interested in sexual reproduction would be led to work out the detailed consequences experienced by organisms having three or more sexes; yet what else should he do if he wishes to understand why the sexes are, in fact, always two? Ronald Fisher work-out two sex Experimental observations are only experience carefully planned in advance, and designed to form a secure basis of new knowledge. Ronald Fisher experience science knowledge Professor Eddington has recently remarked that 'The law that entropy always increases - the second law of thermodynamics - holds, I think, the supreme position among the laws of nature'. It is not a little instructive that so similar a law [the fundamental theorem of natural selection] should hold the supreme position among the biological sciences. Ronald Fisher fundamentals law thinking It was Darwin's chief contribution, not only to Biology but to the whole of natural science, to have brought to light a process by which contingencies a priori improbable, are given, in the process of time, an increasing probability, until it is their non-occurrence rather than their occurrence which becomes highly improbable. Ronald Fisher evolution light science 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 Fisher fields special believe
