
 [Newton, Isaac], PHILOSOPHIÆ NATURALIS PRINCIPIA MATHEMATICA Auctore Isaaco Newtono, Equite Aurato. Edition Secunda ... 
  [Newton, Isaac], PHILOSOPHIÆ NATURALIS PRINCIPIA MATHEMATICA Auctore Isaaco Newtono, Equite Aurato. 
  Newton, in the PRINCIPIA, stated the three laws of motion that establish the relationship of mass, force, and direction; he also discussed the movement of bodies through gases and liquids, and defined mass and force and the corpuscular theory of light. 
  Roger Cotes, 16821716, "was not only able enough to see where Principia could be improved, but also able to criticise Newton and correct his errors without ever antagonising him  no mean feat... 
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