The trick to powerful public speaking | Lawrence Bernstein

The boiling river of the Amazon | Andrés Ruzo

Why some of us don't have one true calling | Emilie Wapnick

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

The danger of a single story | Chimamanda Ngozi Adichie

The unheard story of David and Goliath | Malcolm Gladwell

Never, ever give up | Diana Nyad

Sunday Pick: A Healthier You: A 5-step guide to better doctor visits | TED Health

How your childhood toys tell your life story | Chris Byrne

This refrigerator is saving lives | Norah Magero