I can’t remember when I got turned on to TED talks, but I enjoy them sporadically. I’ll get on a roll and watch quite a few over a couple days or so. Here’s a couple I’ve enjoyed recently. Both of these guys come from different perspectives and end up with different conclusions, and both are worth the listen.
AJ Jacobs on his experiment on a year of living biblically (and book by that name):
or: http://www.ted.com/talks/a_j_jacobs_year_of_living_biblically.html
Rick Warren on the importance of finding one’s purpose and significance in life:
or: http://www.ted.com/talks/lang/eng/rick_warren_on_a_life_of_purpose.html