Nothing can be brought to an end in the unconscious; nothing can cease or be forgotten.
 Sigmund Freud, The Interpretation of Dreams (1899). copy citation

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Author Sigmund Freud
Source The Interpretation of Dreams
Topic unconscious forgetting
Date 1899
Language English
Reference
Note Translated by A. A. Brill
Weblink http://www.bartleby.com/285/7.html

Context

“That the unconscious wishes always remain active is quite true. They represent paths which are passable whenever a sum of excitement makes use of them. Moreover, a remarkable peculiarity of the unconscious processes is the fact that they remain indestructible. Nothing can be brought to an end in the unconscious; nothing can cease or be forgotten. This impression is most strongly gamed in the study of the neuroses, especially of hysteria. The unconscious stream of thought which leads to the discharge through an attack becomes passable again as soon as there is an accumulation of a sufficient amount of excitement.” source