The Terman Study of the Gifted presents a unique opportunity to study the implications of achievement for life satisfaction in adulthood and aging. This article uses a life-span developmental perspective to summarize research concerning the lifetime achievement of the Terman sample, their appraisals of living up to their intellectual abilities, and their approaches to aging. A large majority of the Terman men reached high levels of occupational achievement, while the achievements of the Terman women were more varied. The historical context is important in understanding these gender differences. The participants' appraisals of having lived up to their intellectual abilities were generally positive, and appraisals were related to lifetime achievement pattern and gender. Early knowledge of being labeled as gifted was negatively related to participants' appraisals of their life accomplishments in adulthood. Finally, the lives of the Terman Study participants provide insight into possibilities for successful aging.