The conceptual problems of classification have taken over the philosophy of psychiatry. A questionable premise of this approach is that medicine bases its knowledge and treatment choices on classifications. However, this "theory and practice" circle is scholastic confinement. The objective of this paper is to expose a philosophy of clinical judgment concerned with the problems of methods of knowledge generation and choice of treatments, starting with the problem of the threshold of suffering. The methodological challenge is to identify the sources and types of possible errors rather than lock oneself into the certainty of reducing uncertainty by a philosophy of clarified concepts or thickened experience.