The More Highly Adapted An Organism Becomes,

Fairly Large Print Is A Real Antidote To Stiff Reading.

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.

Modern Statisticians Are Familiar With The Notion That Any Finite Body Of Data Contains Only A Limited Amount Of Information On Any Point Under Examination; That This Limit Is Set By The Nature Of The Data Themselves, And Cannot Be Increased By Any Amount Of Ingenuity Expended In Their Statistical Examination: That The Statistician's Task, In Fact, Is Limited To The Extraction Of The Whole Of The Available Information On Any Particular Issue.

If ... We Choose A Group Of Social Phenomena With No Antecedent Knowledge Of The Causation Or Absence Of Causation Among Them, Then The Calculation Of Correlation Coefficients, Total Or Partial, Will Not Advance Us A Step Toward Evaluating The Importance Of The Causes At Work.

We Have The Duty Of Formulating, Of Summarizing, And Of Communicating Our Conclusions, In Intelligible Form, In Recognition Of The Right Of Other Free Minds To Utilize Them In Making Their Own Decisions.