text: The seventh book of this text claims that the phrase "pale man" is not a unified definition of anything, even though we can use a single word such as "cloak" to refer only to pale men.
full_question: The seventh book of this text claims that the phrase "pale man" is not a unified definition of anything, even though we can use a single word such as "cloak" to refer only to pale men. Its opening paragraph claims that we delight in senses like vision since "All men by nature desire to know." Its twelfth book posits a thought which is a thinking on thinking. This text claims that a potential principle of matter and an actual principle of form combine to make up each "primary substance." Aquinas's Summa Theologica equates God with the "unmoved mover" in this text, which was originally presented after notes on the nature of change and movement towards a telos. For 10 points, name this study of "being qua being" by Aristotle, whose name now graces a subfield of "first philosophy."
first_sentence: The seventh book of this text claims that the phrase "pale man" is not a unified definition of anything, even though we can use a single word such as "cloak" to refer only to pale men.
raw_answer: Metaphysics [or ta meta ta physika; or Metaphysica; accept any answer indicating the writings on, or notes from lectures about, metaphysics attributed to Aristotle]