For the past 30 years, Sheryl Sandberg has relied on the love and support of her best friends. Meet two members of her personal 'lean-in circle' and find out what happens when they try to limit their children's Facebook time.

Oprah and Facebook COO Sheryl Sandberg discuss how businesswomen are judged differently than their male counterparts.

Facebook COO Sheryl Sandberg talks to Oprah about being a powerful female leader and what it takes to rise through the ranks. Plus, find out why this working mother says no one can have it all.

After graduating from Princeton University, Sonia Sotomayor married her high school sweetheart, Kevin Noonan. Seven years into their marriage, she and Kevin divorced. Watch as Justice Sotomayor speaks candidly about the end of her marriage and the challenges of dating. Plus, what do Supreme Court justices do for fun? Find out now!

Sheryl Sandberg admits that when she first accepted the chief operating officer position at Facebook, the world's largest social network, the pressure to make the company what it needed to be kept her up at night. Watch as Sheryl shares her initial concerns about working with Facebook founder and CEO Mark Zuckerberg, a man 15 years her junior.

Supreme Court Justice Sonia Sotomayor says she was in total disbelief the day she got the call from President Barack Obama informing her that she would be his nominee for the nation's highest court. Watch as Justice Sotomayor tells Oprah what the president said to her on the phone and why his words made her do something she rarely does: cry.

Supreme Court Justice Sonia Sotomayor was raised in a Bronx housing project by her mother, Celina, and her father, Juan. When she was 9 years old, her father, an alcoholic, died suddenly. Watch as Justice Sotomayor shares how her father's disease transformed her into a watchful child.

Oprah speaks one-on-one with two of the country's most powerful women: Facebook COO Sheryl Sandberg and Supreme Court Associate Justice Sonia Sotomayor.

Every year, people from around the world flock to Abadiania, Brazil, the remote village that's home to John of God's healing center, the Casa. Oprah traveled 6,000 miles to see John of God's controversial practices firsthand. Watch as she observes a shocking physical surgery and find out why she had to sit down.

Watch as Oprah and John of God sit beneath a mango tree in Brazil to discuss his gift. Plus, find out how Joao Teixeira de Faria, a tailor's son who never learned to read or write, became known around the world as John of God.