Niels Bohr1885–1962- In his first meeting with Werner Heisenberg in early summer 1920, in response to questions on the nature of language, as reported in Discussions about Language (1933); quoted in Defense Implications of International Indeterminacy (1972) by Robert J. …
- In a 1952 conversation with Heisenberg and Pauli in Copenhagen; quoted in Heisenberg, Werner, Physics and Beyond. (New York: Harper & Row, 1971) p. 206.
- “The Unity of Human Knowledge” (October 1960)
- Said to Wolfgang Pauli at Columbia University (1958), as reported by Freeman Dyson, ‘Innovation in Physics’, Scientific American (September 1958)





