Abstract
In this talk, I describe quantum monadology from the three viewpoints: Systems, Consciousness and Brain. A system that a physicist deals with is cut out from the whole universe dependent on his arbitrary choice and itself can be divided more as it is. The brain as a neuro-network is such a dividable system, and consciousness cannot exist in it, because consciousness is a un-dividable unity. In order to understand consciousness we need the concept of monad as a proper system which is not defined by any division of the world. Quantum physics has a structure in which an arbitrary division of the world does not allowed, which has an affinity to the concept of a monad and leads us to quantum monadology. If the brain has consciousness, it must be a coherent quantum machine as well as a classical neuro-network machine.
