To Egon Freiherr von Eickstedt
Dear Colleague, 3 July 1939
While I greatly appreciate your kind request for an article on the racial problem, I regret to have to inform you that I have concerned myself far too little with racial questions to be able to say anything decent about them.
Equally, the connection between bodily disposition and psychic peculiarities is still so obscure to me that I cannot venture to speculate about it.
My typology is concerned only with the basic forms of psychological attitude which I could not at present identify with any physiological or anatomical dispositions.
I hope, therefore, that you will not take it amiss if I cannot fulfil your expectations.
With collegial regards,
C.G. Jung ~Carl Jung, Letters Vol. I, Page 272