Any musician who has not experienced - I do not say understood, but truly experienced - the necessity of dodecaphonic music is USELESS. For his whole work is irrelevant to the needs of his epoch.
Emphasis in the original. From "Eventuellement..." (1952), translated as "Possibly..." in Stocktakings from an Apprenticeship, Oxford: Oxford University Press, 1991, p. 113. ISBN 0193112108