In order to present a reality, one needs to presents through the concept of monism, dualism, physicalism and idealism. Monism is the independent existent of a single reality. It can be either mental or physical by nature. The fundamental existent of mental by nature is idealism, which is opposed to dualism, of mind and matter in reality. On the other hand, physicalism is the independent reduction to materiality. Among the earliest western philosophers Parmenides and Spinoza each believed that there