The subject of masturbation is inexhaustible.
~ Sigmund Freud
An erection at will is the moral equivalent of a valid credit card.
~Alex Comfort
The great question that has never been answered and which I have not get been able to answer, despite my thirty years of research into the feminine soul, is "What does a women want?
~Sigmund Freud
Sex lies at the root of life, and we can never learn to reverence life until we know how to understand sex.
~Havelock Ellis
Anatomy is destiny.
~Sigmund Freud
The only unnatural sex act is that which you cannot perform.
~Alfred Kinsey
No one who has seen a baby sinking back satiated from the breast and falling asleep with flushed cheeks and a blissful smile can escape the reflection that this picture persists as a prototype of the expression of sexual satisfaction in later life.
~Sigmund Freud
We must reckon with the possibility that something in the nature of the sexual instinct itself is unfavorable to the realization of complete satisfaction.
~Sigmund Freud
A man must be potent and orgasmic to ensure the future of the race. A woman only needs to be available.
~Masters and Johnson
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