We just did it. We didn't think in terms of 'purity' or ultra-rigidly 'protecting the transference', though of course we understood that the transference was the crucial thing. Fenichel had begun his practice when he was twenty, and he knew more about psychoanalysis than anyone there. I don't think it worried him for a minute that he had been Georg's analyst. Very long for those days, but of course not for now.
People go on forever now.
But I think they forget that self-analysis is important, too. I do it for myself. I've never been back in analysis, but if the work re-stimulates a conflict, if I do or say something that bothers me, I associate to try to find out what makes me say that. It was during her analysis that Lilo's marriage to Georg ended. The Prague group functioned the same way as all the other groups of the day had, with the exception of the Viennese who of course had the very special situation of Freud's presence and therefore a clear line of seniority.