Art is free, shameless, irresponsible [...], the movement is intense, almost feverish; it resembles, it seems to me, a snakeskin full of ants. The snake itself is long since dead, eaten out from within, deprived of its poison; but the skin moves, filled with busy life.

Ingmar Bergman Expressen, 1 August 1965 (trad. Keith Bradfield)