1
out, du même auteur ; Europe, the emergence of an
idea
, Edinburgh. University Press, 1957. 74. Opera omnia, Epist. CXXVII.
2
xample, was a highly original and somewhat daring
idea
twenty years ago, when it was discussed by MM. Denis de Rougemont, Pi
3
de Rougemont, Pierre Auger and others ; now this
idea
is established in Europe, CERN exists, everybody can look at it, and