It has this influence above all in the sphere of sex, where such inhibitions have been most powerfully laid on the native impulses, where the natural tendencies have been most surrounded by taboos and terrors, most tinged with artificial stains of impurity and degradation derived from alien and antiquated traditions.

Thus the therapeutical experience of the psycho-analysts reinforces the lessons we learn from physiology and psychology and the intimate experiences of life.
[20] See, for instance, H.W.Frink, _Morbid Fears and Compulsions_, 1918, Ch.

X.
Sexual activity, we see, is not merely a bald propagative act, nor, when propagation is put aside, is it merely the relief of distended vessels.

It is something more even than the foundation of great social institutions.
It is the function by which all the finer activities of the organism, physical and psychic, may be developed and satisfied.

Nothing, it has been said, is so serious as lust--to use the beautiful term which has been degraded into the expression of the lowest forms of sensual pleasure--and we have now to add that nothing is so full of play as love.