I will not here omit one Thing which I did not think to have mentioned in this Place: Namely, that if you could so order it that the Bottom or Keel of any Weight which you would move might (as far as could be done by the Art and Skill of the Workman) be made no broader than a Point, and be moved in such a Manner upon a firm and solid Plain as not in the least to cut into it, I would engage you should move Archimedes' s Ship, or effect anything else of this Nature whatsoever.