[You need] eight hugs a day. You'll be happier and the world will be a better place.

Source: "Trust, Morality -- and Oxytocin?" TEDGlobal 2011. Jul. 2011. Conference Presentation. Additional Information: The meaning of this quote is pretty straightforward -- receiving eight hugs a day will make you happier and thereby make the world a happier place. In the TED Talk this quote is taken from, neuroeconomist Paul Zak explains the science behind this happiness "prescription." Zak says that the brain chemical oxytocin, which promotes bonding and feelings of happiness, is released when you receive a hug. Watch the full TED Talk here: Paul Zak - Trust, Morality -- and Oxytocin?