[_delirium]

Yeah, especially given the common conceptions of mind at the time he wrote, I see one of his main enduring contributions being the idea that the mind is not something we have full, transparent, introspective access to. A few other philosophers around the time were getting at similar ideas (Nietzsche and Schopenhauer were both interested in the hidden influences that caused people to think and want what they thought and wanted), but the mainstream view was that the mind was fully accessible to itself, i.e. that all thought was conscious.

Of course, that isn't necessarily an endorsement of his much more specific views on male and female gender roles.