Can you guess the author? The passage is this:
…the more money they made the next day on the streets. Those three things–autonomy, complexity, and a connection between effort and reward–are, most people agree, the three qualities that work has to have if it is to be satisfying. It is not how much money we make that ultimately makes us happy between nine and five. It’s whether our work fulfills us.
Hat tip goes to WillWilkinson.