I know, however, but of one ancient book that authoritatively challenges universal consent and belief, and that is Euclid’s Elements of Geometry;50 and the reason is, because it is a book of self-evident demonstration, entirely independent of its author, and of everything relating to time, place, and circumstance. The matters contained in that book would have the same authority they now have, had they been written by any other person, or had the work been anonymous, or had the author never been known; for the identical certainty of who was the author makes no part of our belief of the matters
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