The Sermon is a Sound of Words spoken to the Ear, and prepar'd only for present Meditation, and extends no farther than the strength of Memory can convey it; a Book Printed is a Record; remaining in every Man's Possession, always ready to renew its Acquaintance with his Memory, and always ready to be produc'd as an Authority or Voucher to any Reports he makes out of it, and conveys its Contents for Ages to come, to the Eternity of mortal Time, when the Author is forgotten in his Grave. If a Sermon be ill grounded, if the Preacher imposes upon us, he trespasses on a few; but if a Book Printed obtrudes a Falshood, if a Man tells a Lye in Print, he abuses Mankind, and imposes upon the whole World, he causes our Children to tell Lyes after us, and their Children after them, to the End of the World. This Observation I thought good to make by way of Preface, to let the World know, that when I go about a Work in which I must tell a great many Stories, which may in their own nature seem incredible, and in which I must expect a great part of Mankind will question the Sincerity of the Relator;