Who said "One cannot accomplish anything of importance alone."?

This quote is attributed to Marianne Moore.

One cannot accomplish anything of importance alone. - Marianne Moore

"One cannot accomplish anything of importance alone."

Marianne Moore Friendship

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."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."