Dr. Jung's on the "Classification by Type"

The classification of individuals [By Type] means nothing at all. It is only the instrumentality, or what I call "practical psychology," used to explain, for instance, the husband to a wife, or vice versa. ~Carl Jung, Evans Conversations, Page 23.

I have never thought of my typology as a characterological method and have never applied it in this sense. ~Carl Jung, Letters Vol. I, Pages 129-130

In my book about types I have given a number of examples illustrating my modus operandi. Classification did not interest me very much. It is a side-issue with only indirect importance to the therapist." ~Carl Jung, Letters Vol. II, Pages 550-552

There lies the gravamen of the book, [Psychological Types] though most readers have not noticed this because they are first of all led into the temptation of classifying everything typologically, which in itself is a pretty sterile undertaking. ~Carl Jung, Letters Vol. I, Pages 186-187

Nor was it ever my intention to characterize personalities, for which reason I did not put my description of the types at the beginning of the book; rather I tried to produce a clear conceptual scheme based on empirically demonstrable factors. ~Carl Jung, Letters Vol. I, Pages 129-130

Hence my typology aims, not at characterizing personalities, but at classifying the empirical material in relatively simple and clear categories, just as it is presented to a practising psychologist and therapist. ~Carl Jung, Letters Vol. I, Pages 129-130

There is no such thing as a schematic classification. ~ Conversations with Carl Jung and Reactions from Ernest Jones, Page 23.