Not Money or Pleasure: Scientists Say They've Found The True Key to Happiness

"It's great to have great sex and hot-fudge sundaes," says cognitive scientist Laurie Santos, who studies the science of well-being at Yale University. "But ultimately, true happiness probably comes from what we do with others and building a broader good life." The source of a "good life" has been a focus of philosophical thought for at least 2,300 years.