What A Man Sees Depends

The Historian Of Science May Be Tempted To Exclaim That When Paradigms Change, The World Itself Changes With Them.

The Transition Between Competing Paradigms Cannot Be Made A Step At A Time, Forced By Logic And Neutral Experience. Like The Gestalt Switch, It Must Occur All At Once (though Not Necessarily In An Instant) Or Not At All.

"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.

Though The World Does Not Change With A Change Of Paradigm, The Scientist Afterward Works In A Different World... I Am Convinced That We Must Learn To Make Sense Of Statements That At Least Resemble These. What Occurs During A Scientific Revolution Is Not Fully Reducible To A Re-interpretation Of Individual And Stable Data. In The First Place, The Data Are Not Unequivocally Stable.

The Decision To Reject One Paradigm Is Always Simultaneously The Decision To Accept Another, And The Judgment Leading To That Decision Involves The Comparison Of Both Paradigms With Nature And With Each Other.