Born in Australia without arms or legs, 30-year-old Nick Vujicic has become an international symbol of triumph against all odds. In this clip from 'Oprah's Lifeclass,' Nick talks with Oprah and Pastor Rick Warren about his road to self-acceptance. 'It's a lie to think that you're not good enough,' he says. 'It's a lie to think that you're not worth anything.' Hear more his story on 'Oprah's Lifeclass' Jan. 13 at 9 p.m. ET on OWN.
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