This chapter considers Hume's proposal that we are made up entirely of particular mental states and events: the bundle view. An argument for the bundle view is based on the claim that the traditional idea of substance is dismissed. The bundle view is then shown to follow naturally from widely held claims about diachronic and synchronic personal identity. Reid's objection that bundles of thoughts cannot be thinkers is elaborated and endorsed. It is then argued that the bundle view cannot easily avoid the thinking-animal problem. There follows a critical discussion of two related views: that we are bundles of universals and that we are something like computer programs. Both are found to be hopeless.
Keywords: animal, bundle, computer program, Hume, personal identity, synchronic identity, Reid, substance, thinking, universal