2. What happens when a mass of water transforms itself into air? This
question demands particular treatment; for how can the transformed
element occupy a greater extension? (We shall not try to explain
it on either the Peripatetic or Stoic principles) because we have
sufficiently developed above the numerous reasons advanced by both
those schools. We had better now consider which of the two systems
we ourselves might adopt, and on which side lies reason. Besides, we
should consider whether, besides these both, there be not place for a
third opinion.