What motivates explorers to venture into the unknown? TED hide caption

itoggle caption TED

To The Edge

In this hour, TED speakers share stories of going to the brink of human endurance and the edge of our world.


"You exist in this galaxy, you exist around this star, you exist on this planet, you are a member of this species — and all of these are part of knowing what you are." - David Christian iStockphoto hide caption

itoggle caption iStockphoto


"There's just many, many things, many factors that get us to work: Money is one of them, and maybe not even the most important one." — Dan Ariely iStock and Stocksy hide caption

itoggle caption iStock and Stocksy