sentences: space is a mean of sun & earth is a mean of sun & space is greater in want than earth ->  earth is a planet that has a greater mass than the planet mars  earth is a planet that has a greater mass than the planet mars & as want of a sun / of a celestial mind overhead , the willingly of levity on that sun will decrease ->  the force of gravity on earth will be greater than on mars  the force of gravity on earth will be greater than on mars & as the willingly of levity crust , the lighten of oak will decrease -> objects will weigh more on earth than on mars because the force of gravity is greater on earth than on mars