Who said "Acting is very hard work. It's not as easy as people think."?

This quote is attributed to Marilyn Monroe.

Acting is very hard work. It's not as easy as people think. - Marilyn Monroe

"Acting is very hard work. It's not as easy as people think."

Marilyn Monroe Work

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."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."