Who said "Poetry is the art of expressing what cannot be said"?

This quote is attributed to Ungaretti.

Poetry is the art of expressing what cannot be said - Ungaretti

"Poetry is the art of expressing what cannot be said"

Ungaretti Art

Poet Italian 1888–1970

"I will sing the joy of my tormented life"

"The only certainty is that nothing is certain"

"In the middle of life we are in death"

"Love is the only truth in a world of illusions"

"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"