This paper outlines and assesses current arguments for and against the ethical hedonist claim that pleasure is the only good, and that pain is the only bad. It outlines and appraises some recent moves in ‘heterogeneity’ arguments against hedonism, and some moves in recent arguments for hedonism that appeal to an experience requirement or a resonance requirement. It also analyses contest between attitudinal and phenomenal accounts of pleasure and pain, and some differences among such accounts that matter in experience/resonance arguments for hedonism, and in heterogeneity arguments against hedonism.
