The fourth day revisits the process discussed on the previous two days, emphasizing that the process of conceptualizing is volitional, and so requires a self-conscious method. The instructor discusses the nature of objectivity, how the need for reduction and integration stems from the nature of conceptualization, the false alternative of intrinsicism and subjectivism (both as abstract theories and as cognitive methods), the need to validate one’s concepts and definitions, invalid concepts, the role of hypothetical reasoning in validating conclusions, the nature of the arbitrary, contextual absolutism and the status of proven conclusions.