Abstract

The mind-body problem is a central problem of modern philosophy. Leibniz’s Monadology as a model of a solution is picked up again and again even today. In order to characterize three of these completely different new monadologies of today, the basic difficulty of the mind-body-problem is outlined as a background, followed by a short sketch of the Leibnitian solution. - The first new monadology, here, is the metaphysical solution of U. Meixner, who chooses consciousness as a fundament, seeing a monad as a stream of consciousness. This is contrasted with a second new monadology, namely N. Rescher’s process-theoretical approach, which takes the monad not as a substance, but as a process. The third new monadology is the quantum monadology of T. Nakagomi, where the monad is embedded in a quantum ontological concept that elaborates a reconciliation of the macroscopic, material world with a quantum theoretical world of consciousness, both sides seen as an interpretation. Finally there are some reflections on a merger of elements of these three concepts of monadology for an approach of today.