EN
This article is a comment on Wlodek Rabinowicz Utilitarianism by Way of Preference Change?, in which I defend Richard Hare's argument for utilitarianism. I argue that Hare's role reversal thought experiments can, despite of Rabinowicz's criticism, lead to transforming interpersonal preference conflicts into intrapersonal ones, but, in order to achieve this, we need to interpret his thought experiment correctly. I distinguish three interpretation of reversing roles experiment and argue, that for at least two of them, which de facto Hare endorse, Rabinowicz criticism fails.