Why Mia Farrow’s best advice to her son is motherhood in a nutshell

What is the best piece of advice Mia Farrow ever gave her son? We've got the answer.

Ronan Farrow isn't the only big name in the Farrow household. His mom, Mia Farrow, is a big-time actress (Rosemary's Baby, Hannah and Her Sisters, The Great Gatsby) and instilled some of the wisdom she learned along the way into her son. Here, on Mother's Day, Ronan shares the best piece of advice he learned from her. Ronan Farrow's new book is War on Peace: The End of Diplomacy and the Decline of American Influence.

Meeting the Supreme Leader: Is the U.S. about to give up its best bargaining chip?

North Korea has nothing to lose in face-to-face diplomatic talks. Can the same be said of the U.S.?

Nobody hopes the eventual face-to-face meeting between President Donald Trump and North Korean leader Kim Jong-un works out more than Pulitzer Prize-winning investigative journalist Ronan Farrow. Farrow's new book War on Peace in part details the history of diplomatic efforts between past White House administrations and the North Korean regime, and how fragile and fraught with lies that relationship has been. Trump's "saber-rattling" style may be fresh enough to inspire change, but there is a very good chance the U.S. will get played by North Korea's hollow promises. "We are going to need a core of experts who are experienced in the ways in which these regimes, one after another, are difficult and lie to the rest of the world and pose a threat to that region," says Farrow. The potential meeting between Trump and Jong-un will also be the first time a sitting American president will meet face-to-face with a leader of the North Korean regime, and in doing so, the U.S. might give North Korea what it wants most: legitimization. "The risk with this meeting is that we play into their hands and say, "Yeah, sure, we acknowledge you as an equal on the international stage," and we give up some of our leverage in having them want that contact, want that leader-to-leader access, which could make the nitty-gritty work of actually implementing diplomacy and making sure that they are contained as a nuclear power that much more difficult," says Farrow. Ronan Farrow is the author of War on Peace: The End of Diplomacy and the Decline of American Influence