This paper exhorts geographers to become more active in debate about ethical research practice. It also suggests that ethical theory, practical problems, and lessons learned from postmodern thought make the prospects of establishing prescriptive codes of ethics unlikely. Instead, flexible prompts for moral contemplation might be used to encourage careful thought on matters of ethics. Because the practical feasibility of moral prompts rests on the existence of moral imaginations, it is vital to consider ways in which those imaginations might be stimulated and nurtured. Professional associations and university academics have significant roles to play in this. Geographers must position themselves as effective agents in the processes by which professional research ethics are shaped rather than awaiting the potentially inappropriate outcomes of other agencies' deliberations.