... There can be no
doubt about faith
and not reason being
the ultima
ratio. Even
Euclid, who has laid
himself as little
open to the charge
of credulity as any
writer who ever
lived, cannot get
beyond this. He has
no demonstrable
first premise. He
requires postulates
and axioms which
transcend
demonstration, and
without which he can
do nothing. His
superstructure
indeed is
demonstration, but
his ground his
faith. Nor again can
he get further than
telling a man he is
a fool if he
persists in
differing from him.
He says "which is
absurd," and
declines to discuss
the matter further.
Faith and authority,
therefore, prove to
be as necessary for
him as for anyone
else.