I Transformations of Concepts -- I. Types of Knowing -- II. Echoing the Classical Distinctions -- III. Craftsmanship as Knowledge -- IV. Reason and Its Realization -- V. Theory, Praxis, and Speculation -- VI. History Replacing Speculation -- VII. Systems of Thought and Their Consequences -- Two Understanding and Activity -- VIII. Residues and Seeds -- IX. The Ways of the Understanding -- X. Discernment -- XI. Underivable Contents -- XII. Events and Acts -- XIII. Non-Preferential Primacy -- XIV. The Ethical Deed -- XV. The Technical Act and Technology -- Index of Names -- Index of Subjects