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07/24/2014 10:19 am ET | Updated Jul 24, 2014

Sharon Stone On The Myth Of 'Ultimate Beauty' (VIDEO)

At 56 years old, actress Sharon Stone wants to be clear about one thing -- she's no "girl." Somewhere along the line, the iconic beauty says, society was sold on the idea that only youth is attractive.

"I have no lack of confidence about being a woman -- and my own womanly beauty," Stone says in her upcoming "Oprah's Master Class" interview. "I don't believe that being 19 or 20 or 25 or 30 or 35, that any of these moments are 'the moment' of ultimate beauty."

Rather than chasing youth, Stone hopes we start aspiring for more. "Don't we have goals about not just being boys and girls forever?" Stone asks. "I want to be a woman; I don't want to be a girl. Being a girl was hard, you know?"

"Oprah's Master Class" with Sharon Stone airs Sunday, July 27 at 10 p.m. ET on OWN.

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