It is widely recognized that Frege's systematic conception of science has a major impact on his work. I argue that central to this conception and its impact is Frege's Simplicity Requirement that a scientific system must have as few primitive truths as possible. Frege states this requirement often, justifies it in several ways, and appeals to it to motivate important aspects of his broader views. Acknowledging its central role illuminates several aspects of his work in new ways, including his treatment (...) of truth values, logical concepts, and the dependence relations that induce a ‘natural order’ of truths. (shrink)

This thesis argues for the significance of G.W Leibniz’s concepts of ‘expression’, ‘force’ and ‘perspective’ to the writings of Walter Benjamin and Gilles Deleuze. By triangulating the philosophical projects of Benjamin, Deleuze and Leibniz, as has not yet been done, the thesis opens up new perspectives and provides new readings of all three. Designating a structure of relations in which every simple substance or monad serves as a ‘living mirror’ of the universe, Leibniz’s concept of ‘expression’ denotes virtual inclusion or (...) immanence. His concept of ‘force’ denotes the self-incurred drive that motivates the monad to action, while his ‘perspectivism’ defines the monads individuality through their infinite points of view on the world. Deleuze and Benjamin, I suggest, appropriate Leibniz’s concepts as part of their respective critiques of epistemology, which target Kant’s conception of experience as a hierarchic relation of representation, allowing them to redefine experience as non-hierarchal, de-centred and embodied. At the same time, for both, Leibniz’s philosophy serves to criticize historicist views of chronological time. Leibniz’s perspectivism is reformulated by Deleuze and Benjamin as part of their respective critical theories of the image, culminating in their later formulations of the ‘dialectical’ and ‘crystal’ image, respectively. The conclusion however, highlights the diverging paths formed by their returns to Leibniz. Benjamin develops a politically effective ‘historical perspectivism’ in which the discontinuity of history enables ‘true historical time’ to replace chronological time. Deleuze, on the other hand, opts for an ahistorical pure form of temporality, his ‘mannerist perspectivism’ describing a continuous, perpetually repeated ‘becoming’. (shrink)

An objective of thisthesis is to investigate whether philosophical tradition can justify or support some of the arguments that are at the basis of Leibniz’s system (for example, monads have no window to the exterior world, a phrase that summarises the structure of Monadology). I shall demonstrate how Leibniz reflects the concerns and the positions of his key predecessors. Thus, the aim of the thesis is to explore key antecedents to Leibniz’s central doctrines. The thesis argues that Leibniz carried out (...) a logical development of some principles in the eclectic system of Plotinus, which resulted in the structure of Monadology. Whether Leibniz’s project was successful or not will depend on how we view those principles. (shrink)