Full Idea
Freud persuaded many that beliefs, wishes and feelings are sometimes unconscious, and even sceptics about Freud acknowledge that there is self-deception about motive and attitudes.
Gist of Idea
Freud and others have shown that we don't know our own beliefs, feelings, motive and attitudes
Source
report of Sigmund Freud (works [1900]) by Sydney Shoemaker - Introspection p.396
Book Reference
'A Companion to the Philosophy of Mind', ed/tr. Guttenplan,Samuel [Blackwell 1995], p.396
A Reaction
This seems to me obviously correct. The traditional notion is that the consciousness is the mind, but now it seems obvious that consciousness is only one part of the mind, and maybe even a peripheral (epiphenomenal) part of it.