contraries be infinite, the other would be altogether destroyed. But
the word "God" means that He is infinite goodness. If, therefore, God
existed, there would be no evil discoverable; but there is evil in the
world. Therefore God does not exist.

Obj. 2: Further, it is superfluous to suppose that what can be
accounted for by a few principles has been produced by many. But it
seems that everything we see in the world can be accounted for by
other principles, supposing God did not exist. For all natural things
can be reduced to one principle which is nature; and all voluntary
things can be reduced to one principle which is human reason, or will.
Therefore there is no need to suppose God's existence.

_On the contrary,_ It is said in the person of God: "I am Who am." (Ex.
3:14)

_I answer that,_ The existence of God can be proved in five ways.

The first and more manifest way is the argument from motion. It is
certain, and evident to our senses, that in the world some things are
in motion. Now whatever is in motion is put in motion by another, for
nothing can be in motion except it is in potentiality to that towards
which it is in motion; whereas a thing moves inasmuch as it is in act.
For motion is nothing else than the reduction of something from
potentiality to actuality. But nothing can be reduced from
potentiality to actuality, except by something in a state of
actuality. Thus that which is actually hot, as fire, makes wood, which
is potentially hot, to be actually hot, and thereby moves and changes
it. Now it is not possible that the same thing should be at once in
actuality and potentiality in the same respect, but only in different