Hermann Ebbinghaus Quotes
Ideas which have been developed simultaneously or in immediate succession in the same mind mutually reproduce each other, and do this with greater ease in the direction of the original succession and with a certainty proportional to the frequency with which they were together.
Ebbinghaus, Hermann. Memory: A Contribution to Experimental Psychology. Translated by Henry A. Ruger and Clara E. Bussenius, Teachers College, Columbia University, 1913, p. 90.
Hermann Ebbinghaus was a German psychologist who pioneered the experimental study of memory, and is known for his discovery of the forgetting curve and the spacing effect. He was also the first person to describe the learning curve. He was the father of the neo-Kantian philosopher Julius Ebbinghaus.