Chapter 1: Introduction.- Chapter 2: A developing phenomenon in modern societies.- Chapter 3: The generality of stage transformations.- Chapter 4: The evolution towards self-consciousness.- Chapter 5: Basic abstract duality distinctions.- Chapter 6: The transforming duality forms.- Chapter 7: The meta system character.- Chapter 8: The duality system as cognition, socialization, and organization.- Chapter 9: General conclusions, intelligence, and challenges. Limits and potentials.