Hermann Ebbinghaus

Biographical details

Portrait of Hermann Ebbinghaus Hermann Ebbinghaus Psychology: an elementary text-book

In other cases, mere similarity of words of different meaning, rhyme, familiar questions, or spatial contiguity of things lead consciousness from one idea to a second, from the second to the third, and so on, without any common tie which would unite all these ideas into one system.
Coherent thought, secondly, is no endless recurring of the same few ideas, as when I am brooding over something, when a song which I have heard occupies my mind and gives me no peace, when the thought of having possibly failed to lock the door properly prevents me from sleeping.
Source: Gutenberg

Portrait of Hermann Ebbinghaus Hermann Ebbinghaus Psychology: an elementary text-book

Why not assert that heaven is located on the back side of the moon and hell in the center of the sun, merely because no one can see with his own eyes that they are not there? We must make only those assumptions which, considered from all points of view, have a high degree of probability, not those which flatter our vanity or appeal to us as the fashionable belief of the time.
Source: Gutenberg

Portrait of Hermann Ebbinghaus Hermann Ebbinghaus Memory: A Contribution to Experimental Psychology… (1913)

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. 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, so to speak, in the memory.
Source: Wikisource

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