In the last two chapters, beginning with the topic of the preconditions which make perceptions possible, and ending with that of belief, I have been giving my version of the successive steps of the cycle of adaptive knowing. The description of that cycle will not be complete, of course, until we have put the last bricks in place. This will involve a description of the condition of knowledge and how it is used for understanding and control, ending with the conative function and with overt behavior.