Who said "To hold a pen is to be at war."?

This quote is attributed to Edna St. Vincent Millay.

To hold a pen is to be at war. - Edna St. Vincent Millay

"To hold a pen is to be at war."

Edna St. Vincent Millay Art

Poet American 1892–1950

"My candle burns at both ends; it gives a lovely light!"

"It is not enough to have had an education any more than it is enough to have eaten a meal."

"I love humanity but I hate people."

"The world breaks everyone, and afterward, many are strong at the broken places."

"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"