Empedocles appears after the tensions opened by Thales, Pythagoras, Heraclitus, and Parmenides. Thales searched for one origin. Pythagoras emphasized number and order. Heraclitus placed change at the center. Parmenides insisted on the continuity of being. Empedocles tried to hold these pressures together. He no longer claimed that the world comes from one thing. Instead, he proposed four roots: earth, water, air, and fire. He also introduced Love and Strife to explain why things combine, separate, arise, and perish.
From the perspective of Sustenesis Theory, the importance of Empedocles does not lie in whether the four roots are scientifically correct. Modern science obviously no longer treats earth, water, air, and fire as the basic constituents of the world. What matters is the deeper question he touched. The world is not the unfolding of one origin. It is the organization of multiple differences through relational forces. Existence is not merely a pile of materials, nor is it pure formal order. It is structure formed through attraction, repulsion, combination, and separation.
Sustenesis Theory does not say that all things are made of four elements. It says that no existence is produced by a single factor. A thing comes to hold because multiple differences form maintainable relations under constraints. Material matters, but material alone cannot explain structure. Relation matters, but relation cannot float free from concrete differences. The real question is how differences are organized, how relations are maintained, and how structures preserve continuity between generation and collapse.
Empedocles' Love and Strife can be reinterpreted as two basic tendencies within structural formation. Love is not merely emotion, but the tendency toward combination, attraction, integration, and common structure. Strife is not merely destruction, but the tendency toward separation, distinction, exclusion, and the loosening of structure. If the world had only Love, all differences would be forced into fusion and structure would lose its levels. If the world had only Strife, everything would disperse and no structure could hold. Existence occurs between combination and separation.
This is close to Sustenesis Theory. Sustenesis does not eliminate all differences, nor does it allow differences to scatter without limit. It forms sustainable constraints among differences. A living body requires integration among cells and organs, but it also requires boundaries, division of function, and exclusion. The immune system is a clear example. It must sustain internal coordination while distinguishing external threats. Without integration, life loses coherence. Without exclusion, life loses its boundary.
Society works in the same way. A society cannot be only unity, nor can it be only conflict. Unity without difference becomes rigid. Conflict without shared constraint leads to collapse. Institutions, language, trust, exchange, and public rules are sustained structures formed between Love and Strife. They allow different individuals to cooperate while preserving the position of difference.
The self is also maintained through this tension. A person needs to integrate memory, emotion, desire, and action; otherwise the self becomes fragmented. But a person also cannot compress all inner differences into one rigid image. A mature self is not a self without contradiction, but one able to maintain organization through contradiction. Self-deception, repression, personality fragmentation, or emotional collapse can all be seen as failures in the maintenance of internal differences.
Sustenesis Theory therefore answers Empedocles in this way. The world is not a mixture of four elements, but a maintainable structure formed among differences through combination and separation, integration and distinction. Generation is not something appearing from nothing. It is the entrance of differences into a new mode of maintenance. Destruction is not absolute nothingness. It is the failure of an existing structure to continue holding, followed by decomposition and reorganization.
Empedocles' four roots are outdated, but his Love and Strife still have philosophical force. They remind us that structure is not formed by one principle alone. The world needs combination and separation, commonality and difference, order and tension. Sustenesis Theory carries this insight further. Existence is not a static mixture of elements, but a structure continuously organized through relational forces among differences.
Things are not simply assembled from four roots. They are maintained through difference, constraint, combination, and separation.