This paper examines how the Solonian conception of happiness appears transformed in the Socratic teaching, precisely as it is bound up with the introduction of erōs in the historical transition from Herodotean inquiry to Platonic philosophy. It argues, first, that philosophy is distinguished from inquiry by the introduction of erōs; and second, that the turn from olbos to eudaimonia appears as a defining moment in the historical transition from in-quiry to philosophy. Whereas Herodotean inquiry understands the importance for happiness of (...) looking to the end and seeing the whole, Platonic philosophy understands the end or the whole as a fundamental problem, and indeed as a fundamentally erotic problem. (shrink)