Faith
is not believing that something will happen, nor is it the acceptance of what
is contrary to reason, nor is it an intellectual recognition which a man might
give to something he does not understand or which his reason cannot prove,
e.g., relativity. Faith is the acceptance of a truth on the authority of God
revealing.
Faith
is a supernatural virtue, whereby, inspired and assisted by the grace of God,
we believe as true those things which He revealed, not because the truth of
these things is clearly evident from reason alone, but because of the authority
of God who cannot deceive nor be deceived.
--Fulton
J. Sheen, Preface to Religion