Who said "The battle of being against non-being is constant."?

This quote is attributed to Marianne Moore.

The battle of being against non-being is constant. - Marianne Moore

"The battle of being against non-being is constant."

Marianne Moore Perseverance

Poet American 1887–1972

"I like a long dress on a woman, I do not like to see a woman look like a man."

"The mind is an enchanting thing."

"Omit needless words."

"If you wish an interesting essay read all that the other side has to say."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."