Who said "Loyalty is like a two-way street. You have to work at it."?

This quote is attributed to Marilyn Monroe.

Loyalty is like a two-way street. You have to work at it. - Marilyn Monroe

"Loyalty is like a two-way street. You have to work at it."

Marilyn Monroe Friendship

Actress and Model American 1926–1962

"I am my own muse, I am the subject I know best. The subject I want to know better."

"Imperfection is beauty, madness is genius and it's better to be absolutely ridiculous than absolutely boring."

"A wise girl kisses but never tells."

"If you can make a woman laugh, you can make her do anything."

"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."