Intelligence exists (as intelligence) because it thinks existence.
Existence exists (as existence) because, on being thought, it makes
intelligence exist and thinks.[229] There must therefore exist
something else which makes intelligence think, and existence exist,
and which consequently is their common principle. In existence they
are contemporaneous and substantial, and can never fail each other.
As intelligence and existence constitute a duality, their common
principle in this consubstantial unity that they form, and which is
simultaneously existence and intelligence, the thinking subject and
the object thought; intelligence as thinking subject, and existence
as object thought; for thought simultaneously implies difference and
identity.