What did Thomas Jefferson and the members of the Second Continental Congress mean when they wrote “the pursuit of Happiness” into the United States Declaration of Independence? And why is pursuing happiness so important that Jefferson and his fellow Founding Fathers included it in the Declaration of Independence’s most powerful statement of the new United States’ ideals?

Jeffrey Rosen, the President and CEO of the National Constitution Center and a law professor at George Washington University Law School, joins us to investigate and answer these questions with details from his book, The Pursuit of Happiness: How Classical Writers on Virtue Inspired the Lives of the Founders and Defined America.