The connection is made between the Royal Museum of Scotland and encyclopaedia, one of MacIntyre's three rival versions of moral enquiry. It is then asked how MacIntyre's other two methods, genealogy and tradition‐constituted enquiry, would function within a museum. It is proposed that the museum fulfils Haldane's criterion for tradition‐constituted enquiry in that it combines the immanence and open‐endedness of the methods of enquiry with transcendence in the objects of enquiry. The ethical judgments of the visitors constitute transcendent truth in (...) morality; hence one can see the museum as a site of Aristotelian enquiry. -/- To pursue this, the museum is explored as a site of Aristotelian study or theoria, and of MacIntyre's updated Aristotelianism. Therein we study the narratives written by historians and by individuals in a version of Aristotelian epagogê, or the sifting of the opinions of the many and the wise. This process may also enhance civic friendship and our exercise of practical wisdom towards disadvantaged groups. -/- Finally, MacIntyre's three rival versions of moral enquiry are returned to, and a museum characterised for each. All three are found to involve seriousness in the purposes of enquiry. Attention is drawn to MacIntyre's criticism of the interaction of bureaucracy and social science. It is proposed that such interaction may, in the case of the museum, dilute its seriousness as a site of enquiry. (shrink)