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

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.

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.

In scientific subjects, the natural remedy for dogmatism has been found in research.

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.

The more highly adapted an organism becomes, the less adaptable it is to any new change.

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