Abstract
This article contributes to the genealogy of the concept of academic freedom with a focus on the English universities in the middle of the seventeenth century. It argues that libertas scholastica (the corporate freedom of the universities) and libertas philosophandi (liberty of philosophizing, within and without the universities) were distinctive guiding concepts, sometimes in opposition but occasionally complementary, in debates over the universities in this period. If these two notions together constitute the antecedents of the modern concept of academic freedom, their conjunction must be recognized as a much more contingent and irregular phenomenon than has been previously understood.