ABSTRACT
In this book I have attempted to answer Frankfurt's challenge for the philosophy of action and provide a broad, unificatory account of agency that is common to much of the biological world. A truly complete account of action would demonstrate how the raw materials of primitive agency are refined into the full-blooded intentional forms that occupy so much attention in the philosophy of action. That project is beyond the scope of a single book, and I will not attempt it here. But one small step in this direction should be made.
