The brain is more than connective or conjunctive tissue, is an organ composed of three types of connective tissue and it is an organ that control many function of the human beings, and it is a very complicated organ. Neuroanatomy, Histology and Neurology are the proper field of Medicine that can explain what the brain really is, and many scientists do not understand the brain completely it is still under research and investigation and in the future regenerative medicine is going to be able to fix many diseases of the brain . Dialectic can not be applied to Nature, it only exist in the realm of the thought, it was Engels who applied dialectic to nature