ABSTRACT
There are several epistemological questions the people could ask about their belief. Philosophers call the book in front of the people an “external” object, meaning that it is not in their mind. However, after presenting the defective argument, Locke provides four more "concurrent reasons" for thinking that their experience provides evidence for the existence of external objects. The senses in many cases bear witness to the truth of each other's report, concerning the existence of sensible things without the reader. In Locke’s example, the visual experience of fire tends to be accompanied by a tactile sensation of warmth. The resemblance is plausibly explained by postulating the existence of an external object that persists through time-the book before the people-which is the common cause of various experiences and of subsequent memory traces.
