With any considerable number of repetitions, a suitable distribution of them over a space of time is decidedly more advantageous than the massing of them at a single time.

Psychologists
Hermann Ebbinghaus
German psychologist (1850-1909) who turned memory into laboratory science. Using himself as sole subject with 2,300 nonsense syllables, his 1885 On Memory revealed the forgetting curve.
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Hermann Ebbinghaus's Other Quotes
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