For a Theory of Human Knowledge

Personality Structure and Human Interaction: The Developing Synthesis of Psycho-Dynamic Theory (Classic Reprint)

The Forbidden Laws of Reality: The Hidden Principles Behind Existence and Human Potential: Discover Lost Knowledge for Spiritual Awakening, Manifestation, and Self-Mastery

Vitality, Fasting and Nutrition (Classic Reprint): A Physiological Study of the Curative Power of Fasting, Together With a New Theory of the Relation of Food to Human Vitality

Interpretation and Social Knowledge: On the Use of Theory in the Human Sciences