Descartes Substance Dualism Theory

Based upon the belief that the mind and body are two separate entities, philosophers, such as Rene Descartes, support the Substance Dualism theory of mind, arguing that the mind, which is a thinking entity, may exist without the body, which is a physical extension, because it is its own individual substance of matter. In Descartes’ Meditations on First Philosophy, he puts all concepts of previous certainty into question, intentionally leaving the reader with skepticism towards the concept of knowledge and mental capacity at large. Further, he continues to contend that the mind is distinctly different than the body and can be innovated due to its ability to think, whereas the body is merely a tangible and measureable dimension with no greater abilities, such as thinking or experiencing emotion. Additionally, Descartes further describes the ideas held by Substance Dualists through detailing that under this theory of mind, all entities are
For example, the mind provides functions such as thinking, doubting, hating, or desiring. In contrast, the body or brain are mere physical extensions, and simply represent how a person is shaped or the color of their skin. The body and brain do not provide contributions to the mental functioning of a being, and simply provide a physical platform under which the mental, and its own capacities of thought and contemplation, may be housed. As an extension, all things in the universe may be qualified as a body, a physical entity, or a mind, a thinking entity. Additionally, a mind does not need a body to provide it shelter, and regardless of ever having a body, a mind will exist for eternity because it lacks the characteristics of a physical entity, which cause it to degenerate. In conclusion, Substance Dualists perceive the mind and body as separate and distinct substances due to their unique abilities and