— Albert Einstein German-born physicist and founder of the theory of relativity 1879 - 1955
When asked by Viereck if he considered himself to be a German or a Jew. A version with slightly different wording is quoted in Einstein: His Life and Universe http://books.google.com/books?id=dJMpQagbz_gC&lpg=PP1&pg=PA386#v=onepage&q&f=false by Walter Isaacson (2007), p. 386
1920s, Viereck interview (1929)
Variante: Nationalism is an infantile disease. It is the measles of mankind.
Contexto: It is quite possible to be both. I look upon myself as a man. Nationalism is an infantile disease. It is the measles of mankind.