"I think we need to scale back our imagination about how hard and heroic [compassion] is" — Krista Tippett courtesy of TED hide caption

itoggle caption courtesy of TED

"When you grow up poor in America, often you feel very invisible, and like you don't have a voice. Just like many Afghans feel." -Kimberly Motley James Duncan Davidson/James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/James Duncan Davidson/TED

"What I'm saying is that culturally we need a much better balance. We need more of a yin and yang between [introverts and extroverts]." - Susan Cain James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/TED

Environmentalist John Francis speaks about the 17 years of his life during which he never spoke a word. Andrew Heavens/Courtesy of TED hide caption

itoggle caption Andrew Heavens/Courtesy of TED

"I began to learn at least what other people felt and what they wanted to say before cutting them off with my own diatribe. I used to do that." - John Francis Andrew Heavens/TED hide caption

itoggle caption Andrew Heavens/TED

"Clouds are the most egalitarian of nature's displays 'cause we all have a great view of the sky" - Gavin Pretor-Pinney James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/TED