App. 9

If, upon impartial enquiry, the same conclusion, that I have form'd, be assented to by philosophers, the next business is to examine the analogy, which there is betwixt belief, and other acts of the mind, and find the cause of the firmness and strength of conception: And this I do not esteem a difficult task. The transition from a present impression, always enlivens and strengthens any idea. When any object is presented, the idea of its usual attendant immediately strikes us, as something real and solid. 'Tis felt, rather than conceiv'd, and approaches the impression, from which it is deriv'd, in its force and influence. This I have prov'd at large. I cannot add any new arguments; tho' perhaps my reasoning on this whole question, concerning cause and effect, wou'd have been more convincing, had the following passages been inserted in the places, which I have mark'd for them. I have added a few illustrations on other points, where I thought it necessary.