This document establishes the constitutional status of human nature within the Energy-Efficiency Theory (EET) framework. It answers the question: given the physical constitution of constraint networks, how must a human cognitive subject necessarily behave, and what are the constitutional grounds of human drives, behavioral patterns, and developmental trajectories? Human Nature is not an empirical science. It does not observe human behavior and induce "what humans are like. " It is an axiomatic derivation system from the CLOSED theorems of the physical constitution—the Ben-Se Four Theorems, the Existence Inequality, and the Maintenance Asymmetry—unfolding their behavioral consequences in the human dimension. Part I (Constitutional Foundations) establishes the three constitutional principles of Human Nature (the Constitutional Preamble, D-HN-1): Human Nature as an axiomatic derivation system, the human being as a cognitive constraint network (CCN), and "from physical must to behavioral ought"—the constitutional "ought" anchored in Ben-Se Theorem I (Survival Priority, CLOSED), the Survival Priority Statement (Causality Ontology v2. 0, STANDARD), and the Adjudicate registration of constitutional necessity in individual experience (§ I. 0. 4). It establishes the ontological premises (Profit as continued existence, Negentropy as the physical definition of subjectivity, temporality, spatiality), the physical-constitutional roots (Ben-Se Four Theorems, Maintenance Asymmetry, Negentropic Constraint), the subject architecture and behavioral grammar (tri-self distribution, Five-Operation grammar, Five-Step Generative Logic, contradiction as drive, causal arbitrage), the cognitive boundaries (Arrhenius Law, Dual-Channel Architecture, Template Condition, No-Equilibrium Theorem, Inertia-Response Spectrum, Degeneration Corridor, Kₘax, Δₘin, Dual-Blind Problem), and the social-constitutional bridge premises (Shared Narrative Templates, Collective Valence Resonance, Collective Adjudicate). Part II (Ben-Se Equilibrium) establishes the core constitutional dynamics of Human Nature—the Ben-Se equilibrium as a scale-invariant principle applicable to any constraint network regardless of scale (D-HN-2). It unfolds the three irreducible tensions (Creative, Restorative, Degradation Drag), phase switching (Se phase, Ben phase, Flow-equilibrium), the behavioral expression of Cross-Self Debts, the Consciousness-Spirit Cycle as the engine of behavioral change, the life-cycle trajectory of Ben-Se equilibrium, and the phenomenological registration of equilibrium states (flow, contentment, excitement, burnout). Part III (The Self—Behavioral Drives and Tendencies) derives the concrete behavioral expressions of the Ben-Se equilibrium. It unfolds Survival Priority behavior (security, resource acquisition, reproduction, group belonging), Developmental Decline (the Arrhenius-law speed limit of behavioral change), Finite Windows (opportunity sensitivity, critical periods, the midlife crisis), Irreversibility (habit formation, addiction, the constitutional basis of willpower, the Polarity Arrow Theorem's behavioral expression—regret, forgiveness, life narrative), Contradiction-Driven Development (the seven-state behavioral mapping), Moral Instincts (D-HN-3—the complete constitutional derivation of moral intuitions as irreversible submergence of successful causal arbitrage templates, with the empirical anchoring declaration distinguishing derived from empirically anchored content, and the formal definition and operational estimation framework for trans-generational C (t) ), Nihilism and Fanaticism (extreme behavior when the Ben-Se equilibrium collapses), the constitutional constraints of behavior (C (t) and finite P_* budget), the protective constitution—the constitutional necessity of boundaries (from the Cut operation and Maintenance Asymmetry) and buffers (from the Nucleation Theorem, Layer Saturation Theorem, and Project operation), and the dialectical relation between them (§ 3. 10-bis) —information trust as the three-criteria Adjudicate audit (source reliability, causal coherence, expected Profit contribution) performed on every piece of incoming information before Capture, including confirmatory inertia as the layered accumulation of Capture bias across a belief's maintenance history (§ 3. 10-ter), the scope and irreversible contraction of freedom including the terminal state of freedom when the scope contracts to zero (§ 3. 11), cognitive boundaries (Kₘax, Δₘin), memory as the foundation of cross-temporal behavioral consistency, attention as the directed allocation of Ėᵣesp budget, curiosity and exploratory drive, sleep and dreaming as the circadian rhythm of Ben-Se equilibrium, and the constitutional basis of temperament and personality. Part IV (Intellect and Experience) establishes the normative dimensions of Human Nature—intelligence as the efficiency expression of Ben-Se equilibrium, reason as the audit precision of the Third Self (including the constitutional anchoring of the phenomenological difference between reason and emotion), wisdom as the optimization of tri-self coordination, the constitutional basis of happiness, aesthetic experience as the phenomenological registration of Encapsulate compression efficiency, and the behavioral drive of experiential registrations (meaning drives goal-directed behavior, identity drives consistency-seeking behavior, the narrative self drives decision preferences). Part V (Sociality) establishes the bridge from Human Nature to the social constitution—the scale-invariance of Ben-Se equilibrium expressed in collective dynamics, language and thought as the externalization and internalization of symbolized Encapsulate, the Ben-Se equilibrium basis of social instincts, the complete constitutional framework of moral behavior: the two constitutional tendencies (Survival Priority and Creative Expansion) and the three-layer logic (self-regarding core, other-regarding expression, group-regarding foundation) that govern all moral behavior (§ 5. 3. 2), the moral spectrum across the η-continuum, including the phenomenology of moral coercion (§ 5. 3. 3), the four social-constitutional pillars (Shared Narrative Templates, Collective Valence Resonance, Collective Adjudicate, Institutions as submerged collective Encapsulate), the constitutional basis of trust, social power, responsibility and obligation, interpersonal dependence through the Dual-Blind Problem, the foundations of EET game theory, the constitutional basis of sacrificial behavior (§ 5. 13), and religious experience as the extreme expression of the ideal self at Layer 4 (§ 5. 14). An Ethics Derivation Roadmap (Appendix G) identifies the constitutional resources and derivation pathways for specific moral qualities. Part VI (Cross-Document Constitutional Bridges) provides the consolidated constitutional bridge declarations to all companion documents. Keywords: Energy-Efficiency Theory, human nature, Ben-Se equilibrium, tri-self coordination, constitutional derivation, moral instincts, causal arbitrage, behavioral necessity, constitutional normativity, scale-invariance, free will, reason and emotion, altruism and egoism, nature and nurture, foundation of morality, reason and intuition, self and identity, cultural relativity, human plasticity, boundaries and buffers, information trust, sacrifice, religious experience, confirmatory inertia.
Hongpu Yang (Wed,) studied this question.