most before the Use of Reason, we always suppose an external Universe, which depends not on our Perception, but would exist, tho' we and every sensible Creature were absent or annihilated. Even the Animal Creation are govern'd by a like Opinion, and preserve this Belief of external Objects, in all their Thoughts, Designs, and Actions.
It seems also evident, that when Men follow this blind and powerful Instinct of Nature, they always suppose the very Images, presented by the Senses, to be the external Objects, and never entertain any Suspicion, that the one are nothing but Representations of the other. This very Table, which we see white, and which we feel hard, is believ'd to exist, independent of our Perception, and to be something external to our Mind, which perceives it. Our Presence bestows not Being on it: Our Absence annihilates it not. It preserves its Existence, uniform and entire, independent of the Situation of intelligent Beings, who perceive or contemplate it.
But this universal and primary Opinion of all Men is soon destroy'd by the slightest Philosophy, which teaches us, that nothing can ever be present to the Mind but an Image or Perception, and that the Senses are only the Inlets, thro' which these Images are receiv'd, without being ever able to produce any immediate In-tercourse
