A scientific community cannot practice its trade without some set of received beliefs. These beliefs form the foundation of the "educational initiation that prepares and licenses the student for professional practice". The nature of the "rigorous and rigid" preparation helps ensure that the received beliefs are firmly fixed in the student's mind. Scientists take great pains to defend the assumption that scientists know what the world is like...To this end, "normal science" will often suppress novelties which undermine its foundations. Research (...) is therefore not about discovering the unknown, but rather "a strenuous and devoted attempt to force nature into the conceptual boxes supplied by professional education". (shrink)

Thomas S. Kuhn's classic book is now available with a new index.

This is arguably the seminal work in historical andphilosophical analysis of the twentieth century.

Brentanos Reflexionen über das Verhältnis von Wahrheit und Evidenz wurden erst 1930 herausgegeben. Ihre Kenntnis ist unentbehrlich für das Verständnis seines Verhältnisses zu den an ihn anknüpfenden Denkern, insbesondere zu Husserl.