Here is a 2007 Google Talk with Matthieu Ricard on Happiness.
If happiness is an inner state, influenced by external conditions but not dependent on them, how can we achieve it? Ricard will examine the inner and outer factors that increase or diminish our sense of well-being, dissect the underlying mechanisms of happiness, and lead us to a way of looking at the mind itself based on his book, Happiness: A Guide to Life’s Most Important Skill and from the research in neuroscience on the effect of mind-training on the brain.Matthieu Ricard is a gifted scientist turned Buddhist monk, is a best selling author, translator, and photographer. He has lived and studied in the Himalayas for the last 35 years where he currently works on humanitarian projects. He is an active participant in the current scientific research on meditation and the brain