The attractive force of the earth acts to the greatest distance, and is observed in the fall of the moon, which is continually drawn towards the earth.
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"The changing of bodies into light, and light into bodies, is very conformable to the course of Nature."
"Gravity must be caused by some agent acting constantly according to certain laws; but whether this agent be material or immaterial, I have left to the consideration of my readers."
"My powers are ordinary. Only my application brings me success."
"It seems probable to me, that God in the beginning formed matter in solid, massy, hard, impenetrable, moveable particles..."
"I have not been able to discover the cause of those properties of gravity from phenomena, and I frame no hypotheses."
From 'Principia Mathematica', Book III, Proposition IV, Theorem IV
Date: 1687
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