The need for new foundations
The metaphysics and epistemology of propositions
Thinking of oneself, the present moment, and the actual world-state
Linguistic cognition, understanding, and Millian modes of presentation
Perceptual and demonstrative modes of presentation
Recognition of recurrence
Believing, asserting, and communicating propositions of limited accessibility
Recognition of recurrence revisited
Situating cognitive propositions in a broader context
Overcoming objections
Extensions, opportunities, and unsolved problems.