Almost Always The Men Who Achieve These

To Turn Karl [popper]'s View On Its Head, It Is Precisely The Abandonment Of Critical Discourse That Marks The Transition Of Science. Once A Field Has Made The Transition, Critical Discourse Recurs Only At Moments Of Crisis When The Bases Of The Field Are Again In Jeopardy. Only When They Must Choose Between Competing Theories Do Scientists Behave Like Philosophers.

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

Communication Across The Revolutionary Divide Is Inevitably Partial.

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.

As In Political Revolutions, So In Paradigm Choice-there Is No Standard Higher Than The Assent Of The Relevant Community... This Issue Of Paradigm Choice Can Never Be Unequivocally Settled By Logic And Experiment Alone.