Man] hath imagined or devised to set up a visible or other sensible mark, the which, when he seeth it again, may bring to his mind the thought he had when he set it up. A mark therefore is a sensible object which a man erecteth voluntarily to himself, to the end to remember thereby somewhat past, when the same is objected to his sense again: as men that have passed by a rock at sea, set up some mark, thereby to remember their former danger, and avoid it.
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Published before 1923