Hope and impediments | Valentino Achak Deng | TEDxBerlin
20:06
From Refugee to Global Ambassador | Ger Duany | TEDxPlaceDesNations
20:48
What does it mean to be African | Imad Mesdoua | TEDxEustonSalon
20:28
Narkissos | İbrahim Kalın | TEDxHacettepeUniversity
19:27
The first 20 hours -- how to learn anything | Josh Kaufman | TEDxCSU
17:52
The power of hope to move a mountain: Gabriel Bol Deng at TEDxBergenCommunityCollege
12:58
The science behind dramatically better conversations | Charles Duhigg | TEDxManchester
18:07
A Lost Boy Finds His Purpose | John Dau | TEDxRVA
14:30