Dan's book "Stumbling on Happiness" just won the Royal Society Prize for Science Books. Seems positive psychology is finally going mainstream. Thank you to all those hippies out there who kept the dream alive until the scientists could come in with their MRI's. Here is a great lecture from Daniel at the 2004 TED conference on the Science of what makes us happy. You will enjoy this, I promise. Afterwards, buy yourself an ice cream. You deserve it.