Dualism is the closest human feeling, but it is not necessarily the highest human philosophy. On the contrary, all great philosophies have been monistic. Man experiences the world dualistically, but monism is the essence of all human thinking. Philosophy disagrees with dualism. However, this fact does not mean too much, because life, being superior to thought, may not be judged by it. In reality, since we are human beings, we are living two realities. We can deny these two worlds, but we cannot escape from them. Life does not depend too much on our understanding of it.