That Sometimes Clear ... And

Blind Commitment To A Theory Is Not An Intellectual Virtue: It Is An Intellectual Crime.

Belief May Be A Regrettably Unavoidable Biological Weakness To Be Kept Under The Control Of Criticism: But Commitment Is For Popper An Outright Crime.

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

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

The Classical Example Of A Successful Research Programme Is Newton's Gravitational Theory: Possibly The Most Successful Research Programme Ever.