Who said "Repetition is the mother of retention."?

This quote is attributed to Hermann Ebbinghaus.

Repetition is the mother of retention. - Hermann Ebbinghaus

"Repetition is the mother of retention."

Hermann Ebbinghaus

Psychologist German 1850–1909

"Memory is the mother of all wisdom."

"The true art of memory is attention."

"We live in succession, in division, in parts, in particles. Meantime within man is the soul of the whole."

"Without repetition, nothing is learned."