Despite the clear successes that happy employees seem to enjoy over less happy employees, it is important to recognize that happiness is not the only resource that can bring success. Other resources such as intelligence, affluence, connections, and perseverance undoubtedly also play a role in career success. Indeed, the particular resource that is most critical to career success—whether it is happiness, street smarts, physical attractiveness, or wealth—is likely to be a function of the career one chooses to pursue. Similarly, this review is not meant to suggest that unhappy individuals cannot enjoy enormous career success.