The flesh has its own spirit. […] which we usually term eroticism. […] there are no indecent happenings in nature, but that there are only good and evil, sensible and unsensible occurrences. […] there are indecent people who do not know how to behave decently in connection with nature’s functions.
Why is this? It is because such people lack culture and spiritual freedom.

Frank Wedekind, Princess Rusalka