Bennett Gilbert

In 1713 the scientific instrument-maker Jakob Leupold published designs for three machines were the first attempt to design machinery with internal moving parts that replaced human agency in creating original images. This paper first analyzes his text and engravings in order to explain how he proposed to do this, given contemporary materials and command of physical forces. Next, it characterizes the devices as a transition from concepts of incision to concepts of mirroring, taken as models of the history of mechanical reproduction. And finally, Leupold’s replacement of the sighting grid with differential gears points to a set of problems appearing in contemporary philosophy represented in Rococo artistic production of this period as well. Taking the proposed devices in context, they help to theorize the complex notions of creative activity in Rococo visual culture. Taken as an episode in the history of communications, they instance the development of conceptions of personhood and of physical forces at stake in the invention of automated media.

Current and recent philosophy of history contemplates a deep change in fundamental notions of the presence of the past. This is called breaking up time. The chief value for this change is enhancing the moral reach of historical research and writing. However, the materialist view of reality that most historians hold cannot support this approach. The origin of the notion in the thought of Walter Benjamin is suggested. I propose a neo-idealist approach called perennialism, centered on recurrent moral dilemmas and choices. This suggests a view of the relations of moral thought and ontology placed in the diachronic context that historians study.

At its founding and during its first three decades, the Carthusian order developed a distinctive and forceful concept of communication among the members and between the members and the extramural world.2 Saint Bruno’s life, contemporary twelfth-century exegesis, and the physical situation of La Grande Chartreuse established the necessary context in which this concept evolved. A review of historical background, the relevant documentary texts, and early development demonstrate the shaping of two steps in this concept. Close reading of the principal testimonies of Carthusians Bruno, Guigo I, Guigo II, and some other witnesses, as well as of some passages in Saint Augustine, argues that Carthusian scribal work was more preliminary practice for spiritual development than it was the sacralization of codices and texts. The two-step structure, composed of contrary movements of presentation and effacement, guarded what the Carthusians regarded as spiritual activity within a changing historical environment and became a fundamental part of Latin Christian mysticism in the fourteenth and fifteenth centuries.