Dualism (Indian philosophy)
Dualism in Indian philosophy refers to the belief held by certain schools of Indian philosophy that reality is fundamentally composed of two parts. This mainly takes the form of either mind-matter dualism in Buddhist philosophy or consciousness-matter dualism in the Samkhya and Yoga schools of Hindu philosophy. These can be contrasted with mind-body dualism in Western philosophy of mind, but also have similarities with it.
Phaedo
The "Phaedo" has come to be considered a seminal formulation, from which "a whole range of dualities, which have become deeply ingrained in Western philosophy, theology, and psychology over two millennia, received their classic formulation: soul and body, mind and matter, intellect and sense, reason and emotion, reality and appearance, unity and plurality, perfection and imperfection, immortal and mortal, permanence and change, eternal and temporal, divine and human, heaven and earth."