You searched for: “nil dictum quod non dictum prius”
Nil dictum quod non dictum prius. (Latin proverb)
Translation: "Nothing has been said that has not been said before."
An alternate meaning is: "How difficult it is to be original."
This entry is located in the following units: dic-, dict- (page 7) Latin Proverbs, Mottoes, Phrases, and Words: Group N (page 3)