This Is Perhaps The Most Important Book

... No Scientific Worker Has A Fixed Level Of Significance At Which From Year To Year, And In All Circumstances, He Rejects Hypotheses; He Rather Gives His Mind To Each Particular Case In The Light Of His Evidence And His Ideas.

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 Convenient Abbreviation For The Theory Of Evolution By Means Of Natural Selection, Put Forward By Darwin And Wallace. This Has Had The Unfortunate Consequence That The Theory Of Natural Selection Itself Has Scarcely Ever, If Ever, Received Separate Consideration.

The Best Time To Plan An Experiment Is After You've Done It.

Inductive Inference Is The Only Process Known To Us By Which Essentially New Knowledge Comes Into The World.

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.