In popularizing the term ‘speaking truth to power’, now widely used throughout the world, Michel Foucault established the basis upon which a new ethics can be constructed. This is the thesis that Mark Olssen advances in Constructing Foucault’s ethics. Olssen not only ‘speaks truth’ to existing moral and ethical theories that have dominated western philosophy since Plato, but also shows how, by using Foucault’s insights, an alternative ethical and moral theory can be established that both avoids the pitfalls of postmodern relativism and simultaneously grounds ethical, moral, and political discourse for the present age. Taking the late ‘ethical turn’ in the philosopher’s thought as its starting point, this ambitious study seeks to construct an ethics beyond anything Foucault ever attempted while remaining consistent with his core postulates. In doing so it advances the concept of ‘life continuance’, which expresses a normative orientation to the future in terms of the quest for survival and well-being, giving rise to irreducible normative values as part of the discursive order of events. This approach is explored in contrast with a range of other, established systems, from the Kantian to the Marxist to contract ethics and utilitarianism.