Harry Stack Sullivan’s interpersonal theory remains a powerful framework for understanding human psychology as an inherently social phenomenon. His revolutionary ideas challenge the isolated individual model and highlight the vital role of relationships in shaping our minds and lives.
By redefining mental illness as difficulties in living and emphasizing the therapeutic potential of human connection, Sullivan offers a hopeful and pragmatic approach to mental health—one that continues to inspire clinicians and theorists today. Forgotten Revolutionary: Sullivan’s Interpersonal Theory