The gospel of doubt | Casey Gerald

A scientific approach to the paranormal | Carrie Poppy

The refugee crisis is a test of our character | David Miliband

The future we're building -- and boring | Elon Musk

A simple birth kit for mothers in the developing world | Zubaida Bai

My year of living biblically | AJ Jacobs

Why I love a country that once betrayed me | George Takei

Never, ever give up | Diana Nyad

Don't ask where I'm from, ask where I'm a local | Taiye Selasi

10 ways to have a better conversation | Celeste Headlee