To E. A. Bennet

My dear Bennet, 3 June 1960

Thank you very much for your kind reply and your interesting article about “Individualism in Psychotherapy”-a very useful paper in the actual circumstances.

There seems to be some misunderstanding of terms: by

“applicability of a theory” I don’t mean its practical application in therapy, f.i., but its application as a principle of understanding and heuristic means to an end as a characteristic of every scientific theory.

There is no such thing as an “absolute proof”; not even the Mathematical proof is absolute as it only concerns the quantum and not the quale, which is just as important if not more so.

I wondered therefore about your statement that scientific proof of the conception of the archetypes is lacking, and I thought you had something special up your sleeve when you made it.

As there is no such thing as “absolute…