Sustainable development requires following the correct paths that lead to the optimal satisfaction of needs, in proportion to its own system, within the public. Whether it is food, drink, affiliation, self-esteem, residence, knowledge ... etc., and some of them contain one, and some require more at the same time, according to their type, the necessities of their condition, and according to what was decreed for them; To ensure its safety, the positiveness of its production, its permanence and its development, in a manner that achieves the best results. Development is the changes that something goes through; developed after going through several stages; Satisfaction of needs, and production are successive stages, because the individual or thing does not reach the required level of production, except by satisfying the basic needs, in proportion to the situation, and then the provision of basic materials, in a way that satisfies the primary needs, according to what leads to the possibility of production, according to Required standards, constantly developing it; achieves growth of the required quality; Accordingly, the provision of basic materials, in a way that satisfies the primary needs, according to what leads to the possibility of production, according to the required standards, and its continuous development; It achieves development and its required sustainability, starting with the system of needsand theways inwhich theyare nourished. It is a product of its source. The process of its improvement, and its continuous development steps, is development, with its various variations and various treatments; Which leads to compatible nutrition, the needs of the organism; In order to achieve the desired sufficiency, up to the manifestation; So it will be where the desired goal is intended, inaway that ensures the development of the products oftheir work inthislife and in theHereafter, according to what has been decreed.