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 unwi….

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 parti….

Natural selection is a mechanism for generating an exceedingly high degree of improbability..

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 ….

Professor Eddington has recently remarked that 'The law that entropy always increases - the second law of thermodynamics - holds, I think, the suprem….

No practical biologist interested in sexual reproduction would be led to work out the detailed consequences experienced by organisms having three or ….

Natural Selection is not Evolution. Yet, ever since the two words have been in common use, the theory of Natural Selection has been employed as a con….

[Coining phrase "null hypothesis"] In relation to any experiment we may speak of this hypothesis as the "null hypothesis," and it should be noted tha….

We have the duty of formulating, of summarizing, and of communicating our conclusions, in intelligible form, in recognition of the right of other fre….

Experimental observations are only experience carefully planned in advance, and designed to form a secure basis of new knowledge..

The analysis of variance is not a mathematical theorem, but rather a convenient method of arranging the arithmetic..

The best time to plan an experiment is after you've done it..

Faith does not mean credulity....

After all, it is a common weakness of young authors to put too much into their papers..

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 ….

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 eq….

The statistician cannot evade the responsibility for understanding the process he applies or recommends..

If ... we choose a group of social phenomena with no antecedent knowledge of the causation or absence of causation among them, then the calculation o….

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

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….

Inductive inference is the only process known to us by which essentially new knowledge comes into the world..