Epicurus of Samos  (341-270 BC)

       Epicurus 
   (341-270 BC)
      Epicurus overcame this after Aristotle's death since he allowed that although atoms were the unsplittable physical minima of matter, because an atom had definite size, it could be said to contain mathematically divisible parts. (A hint of sub-atomic particles??)   Epicurus also explained the compounding of atoms together as they fell with equal speed through the void as due to sudden 'swerves' or deviations.  These unpredictable swerves are a reminder that atomism had more to do with a moral and ethical philosophy than as an interpretation of the physics and chemistry of change.  Swerving atoms allowed for human free will.