The aim of this paper is to explore a pragmatic approach to hope and the ethics of belief that allows rational hope against hope. Hope against hope is hope that goes beyond what the evidence supports by hoping for something that is both highly unlikely and highly valuable. However, this could take different forms. One could either hope against the evidence or merely go beyond it; the evidence could be inconclusive or conclusive, conflicting or clear, misleading or plain, absent or neutral. Hope against hope then covers everything from hoping for something that appears unlikely to hoping for something that appears impossible, judging by the available evidence. However, there is a very long tradition of criticizing hope for being false or irr...