Abstract
This chapter reviews the most prominent existing views on infinity. It argues that infinity must be understood as a simple, fully determined quantity, with a complicated relation to perfection, embodying total creative ontological priority. Spinoza takes the definition of God in terms of infinity to be superior to definitions in terms of perfection. In Spinoza's exchange with Blijenbergh, one question is whether evil or imperfection follow from divine perfection. The chapter shows that Spinoza's infinity cannot mean perfection, a negative quality, a positive quality nor universal quantification. A perfection of perfections would be exactly the absence of negations and privations. In order to maintain the inherent clarity Spinoza supposes and avoid the problem outlined, ‘ens absolute infinitum’ must be taken to be a simple notion. Spinoza suggests an active, ongoing model of creation, where things depend on continuous divine action.