PREFACE.
A R
S the following fheets contain reflections whichare the produce of many years enquiry: fo, I hope, my reader will not be furprized, or make it a matter of complaint, if he fhould find me in one part to differ from myself in another; but would rather think it strange, if I fhould not, seeing it is what men of free enquiry are always liable to; because those evidences, which are the ground of their perfuafions, are, by such enquiry, liable to be differently perceived by them. A proper and well-grounded affent to the truth of any propofition, is founded on a perception of the evidence, upon which the truth of that propofition is fupposed to depend: and, therefore, as our perception of fuch evidence is, in many cafes, liable to alter and change; that is; what we perceive to