“Fulfillment isn't another word for happiness. All kinds of things make us happy at work: hitting a goal, getting a promotion, landing a new client, completing a project, the list goes on. But happiness is temporary; the feeling doesn't last. Nobody walks around energized by the memory of a goal hit twelve months ago. That intensity passes with time.

Fulfillment is deeper. Fulfillment lasts. The difference between happiness and fulfillment is the difference between liking something and loving something.”