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.

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.

... the actual and physical conduct of an experiment must govern the statistical procedure of its interpretation.

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.

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

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.