Hume begins ‘Of scepticism with regard to the senses,’ Section 2 of the Treatise, Book I, Part iv with the claim that it is otiose to ask whether or not there are bodies since belief in their existence is unavoidable. The appropriate question is rather ‘What causes induce us to believe in the existence of body?’. For Hume, belief is lively conception. Hence, he is also undertaking to answer the logically prior question: What causes induce us to form the concept (...) of body? Hume wants to explain the ordinary notion of, and belief in, external objects as part of his science of human nature. (shrink)