For another inspiring TEDx talk about the value of failure, check out http://youtu.be/4KoPYFxu-8w in which Jimmy Wales, founder of WikiPedia, describes his failures leading up to and since founding WikiPedia.
A few quotes to reflect on:
"Success is the ability to go from one failure to another with no loss of enthusiasm." - Sir Winston Churchhill
"I have not failed. I've just found 10,000 ways that won't work.” - Thomas Edison
"Fail fast, fail often, and fail originally." - unknown
Practice Reframing Failure: When you something as a failure, look for what could make it a "productive failure." Consider helping others reframe, too.