"A person who feels pleasure in producing pain in someone else in a sexual relationship is also capable of enjoying as…"

"No one who, like me, conjures up the most evil of those half-tamed demons that inhabit the human beast, and seeks to …"

"He that has eyes to see and ears to hear may convince himself that no mortal can keep a secret. If his lips are silen…"

"And now, the main thing! As far as I can see, my next work will be called "Human Bisexuality." It will go to the root…"

"This is one race of people for whom psychoanalysis is of no use whatsoever."

"Psychoanalysis is in essence a cure through love."

"Time spent with cats is never wasted."

"Sometimes a Cigar Is Just a Cigar."

"The interpretation of dreams is the royal road to a knowledge of the unconscious activities of the mind."

"(Speech of Freud before the B'nai B'rith) I soon convinced myself that I owed to my nature as a Jew alone the two qua…"