"Mental states of every kind, - sensations, feelings, ideas, - which were at one time present in consciousness and then have disappeared from it, have not with their disappearance absolutely ceased to exist"
About this Quote
The context matters: late 19th-century psychology was trying to earn its lab coat, breaking from armchair philosophy without collapsing into pure physiology. Ebbinghaus, famous for quantifying forgetting, needed a conceptual foundation for why experiments on memory are meaningful at all. If mental states truly evaporated, there would be nothing to retrieve, no curve to chart, no "savings" to measure when relearning is faster than first learning.
The subtext is an argument for the legitimacy of the unseen. Consciousness is a biased narrator; it reports what’s on the desk, not what’s in the files. Ebbinghaus is defending the idea that the mind has depth and persistence, and that science can track its traces even when the subject can’t.
Quote Details
| Topic | Knowledge |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Ebbinghaus, Hermann. (2026, January 15). Mental states of every kind, - sensations, feelings, ideas, - which were at one time present in consciousness and then have disappeared from it, have not with their disappearance absolutely ceased to exist. FixQuotes. https://fixquotes.com/quotes/mental-states-of-every-kind-sensations-feelings-149162/
Chicago Style
Ebbinghaus, Hermann. "Mental states of every kind, - sensations, feelings, ideas, - which were at one time present in consciousness and then have disappeared from it, have not with their disappearance absolutely ceased to exist." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/mental-states-of-every-kind-sensations-feelings-149162/.
MLA Style (9th ed.)
"Mental states of every kind, - sensations, feelings, ideas, - which were at one time present in consciousness and then have disappeared from it, have not with their disappearance absolutely ceased to exist." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/mental-states-of-every-kind-sensations-feelings-149162/. Accessed 10 Feb. 2026.




