For over these three years, the authors of this paper have sustained some postgraduate courses on "Human Care in Practice," that are some of common unified academic course resources of postgraduate schools, presented by the Center for the Study of Communication-Design, CSCD, Osaka University. These courses have been introduced by the horizontal and dialogic methodology, for example, group discussion with democratic feedback reviews of all participants equally. This paper examines the theoretical aspects of what and how utterances of participants can or cannot articulate a certain kind of so...