Things in Nature change under the influence of Time, but every natural change is operated by an Unchanging Principle. There is no natural phenomenon of this world which may not require operation of an underlying unchanging principle.
The complex human living system exists as a Social Group, Social Organization, and as a Social Being.
The concept of Whole Synthesis formulates the understanding of Behavior by the study of the relationships between Substance, Structure, Function, Heredity, Environment, Social Community and the actions performed.
The complexities of Life involve knowing What You Are (Essence) and What You Do (Existence). But, Existence always precedes Essence.
All concepts about the material wellbeing of the man must explore the relationship between the energy dependent human organism and its provider of matter and energy.
There are three fundamental issues. 1. What is the purpose of Food? 2. What is the purpose of Man? And 3. What is the purpose of planet Earth?