We See The World In Terms Of

As In Political Revolutions, So In Paradigm Choice--there Is No Standard Higher Than The Assent Of The Relevant Community. To Discover How Scientific Revolutions Are Effected, We Shall Therefore Have To Examine Not Only The Impact Of Nature And Of Logic, But Also The Techniques Of Persuasive Argumentation Effective Within The Quite Special Groups That Constitute The Community Of Scientists.

What A Man Sees Depends Both Upon What He Looks At And Also Upon What His Previous Visual-conceptual Experience Has Taught Him To See.

"normal Science" Means Research Firmly Based Upon One Or More Past Scientific Achievements, Achievements That Some Particular Scientific Community Acknowledges For A Time As Supplying The Foundation For Its Further Practice.

Under Normal Conditions The Research Scientist Is Not An Innovator But A Solver Of Puzzles, And The Puzzles Upon Which He Concentrates Are Just Those Which He Believes Can Be Both Stated And Solved Within The Existing Scientific Tradition.

What Chemists Took From Dalton Was Not New Experimental Laws But A New Way Of Practicing Chemistry (he Himself Called It The 'new System Of Chemical Philosophy'), And This Proved So Rapidly Fruitful That Only A Few Of The Older Chemists In France And Britain Were Able To Resist It.