In Degenerating Programmes, However, Theories

One May Rationally Stick To A Degenerating Research Programme Until It Is Overtaken By A Rival And Even After. What One Must Not Do Is To Deny Its Poor Public Record... It Is Perfectly Rational To Play A Risky Game: What Is Irrational Is To Deceive Oneself About The Risk.

The Positive Heuristic Of The Programme Saves The Scientist From Becoming Confused By The Ocean Of Anomalies.

It Is Not That We Propose A Theory And Nature May Shout No; Rather, We Propose A Maze Of Theories, And Nature May Shout Inconsistent.

There Is No Falsification Before The Emergence Of A Better Theory.

Research Programmes, Besides Their Negative Heuristic, Are Also Characterized By Their Positive Heuristic.