David Richo opens by identifying five core adult relational needs — attention, acceptance, appreciation, affection, and allowing — that he argues characterize genuinely mature, healthy relationships, distinguishing them from more immature or codependent relational patterns.

Why identifying these five specific needs matters:

• Providing explicit, nameable needs allows readers to more precisely evaluate whether their own relationships genuinely meet these mature relational standards
• This framework distinguishes healthy adult relating from more immature patterns that might mimic connection without genuinely providing these core needs
• This opening establishes Richo's core diagnostic framework, providing structure for the book's subsequent detailed examination of mature relating

This opening establishes the book's foundational five-need framework, providing concrete, nameable standards for evaluating genuine relational maturity and health.