“Mental states of every kind — sensations, feelings, images— which were at one time present in consciousness and then have disappeared from it — have not with their disappearance absolutely ceased to exist. Although the inwardly - turned look may no longer be able to find them, nevertheless they have not been utterly destroyed and annulled, but in a certain manner they, continue to exist, stored up to speak, in the memory.”

— Hermann Ebbinghaus

Source: Memory: A contribution to experimental psychology, 1885, p. 1; Cited in: Richard F. Thompson, Stephen A. Madigan (2013) Memory: The Key to Consciousness, p. 87

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Hermann Ebbinghaus 16

German psychologist 1850–1909

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