This article provides an analysis of Johannes Clauberg’s intentions in writing his Logica vetus et nova (1654, 1658). Announced before his adherence to Cartesianism, his Logica was eventually developed in order to provide Cartesian philosophy with a Scholastic form, embodying a complete methodology for the academic disciplines based on Descartes’ rules and a medicina mentis against philosophical prejudices. However, this was not its only function: thanks to the rules for the interpretation of philosophical texts it encompassed, Clauberg’s Logica was meant (...) to provide a general hermeneutics designed to put an end to the quarrels raised by the dissemination of Cartesianism. Such quarrels, according to Clauberg, were caused by the misinterpretation of Descartes’ texts in Revius’ Methodi cartesianae consideratio theologica (1648) and Statera philosophiae cartesianae (1650) and in Lentulus’ Nova Renati Descartes sapientia (1651), which criticized the apparent lack of a logical theory in Descartes’ philosophy and its supposed inconsistencies. Clauberg answers their criticisms by giving a clear account of Descartes’ logical theory and by undermining the interpretative criteria they assumed, in light of a general theory of error. Polemics over Cartesian philosophy, in this way, favored the development of a comprehensive Cartesian methodology for academic disciplines and of the first hermeneutics for philosophical texts. (shrink)

The present study aims to present a transcription and a commentary of three unpublished letters of the Dutch Cartesian philosopher Johannes de Raey, addressed to his former student Johannes Clauberg. Mainly containing suggestions concerning the defence of Cartesian philosophy and academic affairs, these letters, dating back to 1651, 1652 and 1661, bear witness of a steady friendship and of a certain cooperation in rebuking the critiques moved by Jacob Revius in his Statera philosophiae cartesianae and by Cyriacus Lentulus in (...) his Nova Renati Descartes sapientia, refuted in Clauberg’s Defensio cartesiana. According to these letters, this cooperation had to be kept secret, not to provoke the reaction of Leiden theologians. However, the violation of the correspondence of Clauberg and De Raey occasioned the edition of Lentulus’s book and the rise of the polemics over the new philosophy. Eventually, such cooperation is to be noticed also in some crypto-quotations between the edited texts of Clauberg and De Raey. (shrink)