This chapter begins by defining ambition and situating it in contemporary context. In conventional usage, ambition has come to focus on external markers of success, such as recognition, power, and money. Recent technological and cultural forces have given ambitions a wider stage, made power grabs more dangerous, and made competition for wealth and recognition more intense and consequential. The chapter concludes with an overview of the central themes of the book. One is the toxic consequences of an excessive focus on external metrics such as recognition, power, and money. Another is the obstacles to ambition based on gender, race, class, and national origin. A third is the important role of families and schools in developing constructive ambition. And a final theme is the importance of focusing on ambitions that will meet intrinsic needs for meaning and fulfillment, such as nurturing relationships and contributing to ends that transcend the self.