In the last analysis the entire field of psychology may reduce to biological electrochemistry.

The whole life of instinct serves the one end of bringing about death.

Do you not know how uncontrolled and unreliable the average human being is in all that concerns sexual life?

Illusions commend themselves to us because they save us pain and allow us to enjoy pleasure instead.

Psychiatry is the art of teaching people how to stand on their own feet while reclining on couches.

Children are completely egoistic; they feel their needs intensely and strive ruthlessly to satisfy them.

The ego represents what we call reason and sanity, in contrast to the id which contains the passions.