Letter from Paul Dirac to Meyer Salaman Department of Physics The Florida State University Tallahassee, Florida, 32306 Thank you for your letter and also for Mrs Heisinberg's article. I read this article with great interest. It confirms my previous impressions about the situation that Heisenberg had to live through. What a difficult decision he had to make. It makes one realize how lucky I was to be living in England and not to have had any similar problems myself. We have had unusually cold weather here lately. With all best wishes to you and Esther. 6 January 1981