Physics

    All men by nature desire knowledge.

    - Aristotle, Metaphysics


     

  • Aristotle characterized natural objects to be subject to change. Therefore, physics has to deal mostly with change.
  • His work in this field was mostly concerned with analysis and discussions of change.
  • In his opinion, ever change requires the following:
    • a form as a resultant of the change;
    • the earlier absence of this form; and
    • the object that was there in the beginning, but now is characterized by the new form.
  • The form of an object, which Aristotle termed 'souls' for living things, helps to account for its actions. These 'souls' are one of three types:
    • vegetative (plants),
    • sensitive (animals), or
    • rational (human beings).
  • He did not see the body and souls as two different parts of the person, but the soul as a feature of the body.