"The grass is always greener on the other side"--who said it first?

I feel obligated to blog about it because the title of this blog is "Hopping to the grass on the other side" :)

"...this as a proverb, citing as the earliest example in the Chicago Tribune, August 28, 1923, but also noting that Ovid, in Ars Amatoria, used a Latin expression translating as “The harvest is always more fruitful in another man’s fields (Freakonomics).”