Before revision: Metaphysics upright=0.9| alt= Incunabulum showing the beginning of Aristotle's Metaphysics | The beginning of Aristotle's Metaphysics in an incunabulum decorated with hand-painted miniatures .
After revision: Metaphysics upright=0.9| alt= Painting of Immanuel Kant | Immanuel Kant conceived critical metaphysics as the study of the principles underlying all human life´s thought and experience .