The Ethics of Uncertainty asks what it means to live, act, decide, and respond responsibly, in the aporia of freedom itself - a freedom which on one hand opens us to the open space of possible possibilities, and on the other, leaves us no stable ground or measure for pre/determined decision making. The aporia of freedom is conditioned by the indeterminate space of knowing we must make decisions, and yet, at the same time, we cannot call on an absolute authority or measure as a guide. Aporias open us to freedom, the place where, as Derrida has taught us, an ethical decision may occur. Allowing indeterminacy to exist in our becoming allows a continuous coming to be with others - a becoming always open to the "to come" (Derrida) of the future. Always drawing us toward the possibility of making a decision within the fabric of indecision, aporias give us the possibility of ethical becoming. Overall, this text points us to the possibility of living an ethical life in a world without absolute measure - an ethics, in other words, of uncertainty. Michael Anker currently teaches philosophy at the College of New Rochelle in New York and a workshop at the European Graduate School (Switzerland).