Kate Bowler and Elaine Pagels both teach religion, write about religion, and have experienced immense hardships. In this frank and funny conversation, they explore why people still seek ancient religious teachings in our modern age.

Why are certain countries, cities, and towns happier than others? The mayor of Boulder, Colorado, a particularly joyful city, sits down with a happiness researcher to discuss the relationship between happiness and place.

Author of "The Underground Railroad," Colson Whitehead, talks about writing the novel that earned him a Pulitzer Prize.

When Americans elected their first black president more than a decade ago, some questioned whether the country had transitioned into a post-racial era. But today race is a more prominent and intransigent problem than ever.

How do dogs perceive you and the world around them? Two canine cognition scientists, Alexandra Horowitz and Brian Hare, share what dogs know, understand, and believe.

Nadine Strossen, longtime president of the ACLU, says hate speech, as painful as it may be, is justifiably protected. Instead of censoring hate speech, she advocates fighting it with free speech.

Is the English language deteriorating before our ears? Linguist and author John McWhorter says sometimes-annoying modern terms are examples of language evolving.

What does it take to rock climb one of the world’s hardest routes at night in the bitter cold? Tommy Caldwell, an accomplished climber, says he summoned focus, drive, and endurance to summit Yosemite’s nearly vertical 3,000 foot Dawn Wall.

In her seventh book, "Leadership in Turbulent Times," presidential historian Doris Kearns Goodwin writes about the lives of four presidents: Abraham Lincoln, Theodore Roosevelt, Franklin D. Roosevelt, and Lyndon B. Johnson.

Yale psychology professor Laurie Santos is working to improve mental health for college students. Her lessons about how to be happier and feel less stressed apply to everyone.