Who said "Poetry is a way of saying things that cannot be said."?

This quote is attributed to Robert Frost.

Poetry is a way of saying things that cannot be said. - Robert Frost

"Poetry is a way of saying things that cannot be said."

Robert Frost Art

Poet American 1874–1963

"Two roads diverged in a wood, and I took the one less traveled by."

"The only way out is through."

"Good fences make good neighbors."

"Fire and Ice."

"The stage is my true home."

"Art is the expression of the soul."

"Living well means living properly."

"Art and music are the treasures of civilization"