Louis de Broglie Quote
It seems a little paradoxical to construct a configuration space with the coordinates of points which do not exist.
La nouvelle dynamique des quanta (1928), translation by Bacciagaluppi, G., Valentini, A. (2009). Quantum Theory at the Crossroads: Reconsidering the 1927 Solvay Conference. Cambridge University Press. p. 380. ISBN 0521814219.
