In the seventeenth century the Renaissance and Reformation inspired worldly ambitions and self-fashioning among Europeans. New opportunities, such as commercialization and exploration, along with new pressures such as mounting poverty and vagrancy in England, threatened communities and traditions. English adventurers sought their fortunes in Virginia and New England, but their loyalties to traditional duties to God and community varied widely. The lives, worries, and circumstances of Captain John Smith, explorer and self-promoter, and Robert Keayne, a prosperous Boston merchant, illustrate emerging ways of thinking about self-made fates among these colonists. Both pursued their worldly ambitions through incessant work, and they participated in an early stage of shaping the criteria by which Americans would judge successes and failures. They also expressed strong beliefs about fostering communities and working for them while they pursued their own ambitions. At the same time, and like their peers, they guarded the boundaries of inclusion in those communities, defining narrowly who could belong, who merited respect, and whose exploitation and destruction they felt was justified.