Adrianne Ashford

www.ted.com Volunteer firefighter Mark Bezos tells a story of an act of heroism that didnt go quite as expected -- but that taught him a big lesson: Dont wait to be a hero.

TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the worlds leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at www.ted.com/translate.