Regulæ ad Directionem IngenII

The critical edition of Descartes' unfinished work, Regulce ad directionem ingenii, arose from doubts regarding the established text by Ch. Adam, prompting a thorough examination of various sources. The authors compared the Hanover manuscript with the Amsterdam first edition and the neglected 17th-century Dutch version, leading to significant revisions. They express gratitude to several scholars for their guidance and thank library directors for providing essential manuscripts, as well as acknowledging the translator for making the work accessible in French.