Unquestionably The Ethics of Sexual Acts was years ahead of its time when it was first published in 1934. During the years since 1934, scientific and statistical workers have produced a body of that shores up Guyon’s conclusions. The day for Guyon to reach his proper audience would seem to have arrived.
The scientific study of sexual phenomena and of the relations between the sexes has long been hampered by the censorship that has weighed so heavily on sex. It is only since the dawn of the twentieth century that the question has been seriously raised as to whether the anti-sexual moralists have not been the victims of some strange delusion.
The reader must not lose sight of the fact that this volume is essentially a physiological or, to use the current expression, a psycho-physiological study. He must expect, in the following pages to find observations drawn without restriction from all physiological phenomena which are capable of throwing light upon our subject.
