There is a Chinese saying that goes: “If you want happiness for an hour, take a nap. If you want happiness for a day, go fishing. If you want happiness for a year, inherit a fortune. If you want happiness for a lifetime, help somebody.” For centuries, the greatest thinkers have suggested the same thing: Happiness is found in helping others.

 Our passion should be the foundation for our giving. It is not how much we give, but how much love we put into giving. The gift of time is often more valuable to the receiver and more satisfying for the giver than the gift of money. We don’t all have the same amount of money, but we all do have time on our hands, and can give some of this time to help others—whether that means we devote our lifetimes to service, or just give a few hours each day or a few days a year. Scientific research provides compelling data to support the anecdotal evidence that giving is a powerful pathway to personal growth and lasting happiness. Giving activates the same parts of the brain that are stimulated by food and sex. Experiments show evidence that altruism is hardwired in the brain—and it's pleasurable. Helping others may just be the secret to living a life that is not only happier but also healthier, wealthier, more productive, and meaningful.