“In youth we learn; in age we understand.”
~ Marie von Ebner-Eschenbach
Baroness Marie von Ebner-Eschenbach (September 13, 1830 - March 12, 1916) was an Austrian writer. Noted for her excellent psychological novels, she is regarded—as one of the most important German-language writers of the latter portion of the 19th century.
She is credited with the famous aphorism "even a stopped clock is right twice a day."
Source and image wikipedia.org