In any case, our friendship only dates from the spring of 1936 when I was a junior research fellow at the Warburg Institute, and he came to this country at the invitation of Susan Stebbing. One of our joint acquaintances must have given him my address. We both lived in horrible bedsitters in the Paddington area, and we met with increasing frequency. I still remember having been incautious enough to mention that I had read a pamphlet by Rudolf Carnap on the question of other minds, and found it interesting. Karl was visibly distressed. “I am greatly disappointed that you found that interesting,” he said, and from then on I remained a little selective in what I told him.
E. H. Gombrich, preface to The Open Society and its Enemies, by Karl Popper