Ronald Fisher - The Genetical Theory of Natural Selection (1930)

4 Sourced Quotes

View all Ronald Fisher Quotes

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

No efforts of mine could avail to make the book easy reading.

Ronald Fisher

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

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