Throughout his career, Dewey described processes and patterns evident in active problem solving. Here, we consider three: inquiry, knowledge, and truth. There is, Dewey argued, a “pattern of inquiry” which prevails in problem solving. In “Analysis of Reflective Thinking” (1933, LW8) and LTI (LW12) it has five phases. Explicitly disavowing categorical divisions between emotion and reason, the initial phase of inquiry begins (1) with a feeling of something amiss, a unique and particular doubtfulne