The following is reposted from the soc.religion.bahai board on Freenet:
Enclosed is a compilation I prepared from the Baha'i writings on the Baha'i
principle, Independent Investigation of Truth principle.  Happy reading!
Michael Kafes
"God has given man the eye of investigation by which he may see and
recognize truth.  He has endowed man with ears that he may hear the
message of reality and conferred upon him the gift of reason by which
he may discover things for himself.  This is his endowment and
equipment for the investigation of reality.  Man is not intended to see
through the eyes of another, hear through another's ears nor comprehend

with another's brain.  Each human creature has individual endowment,
power and responsibility in the creative plan of God...It is the duty
of everyone to investigate reality and investigation of reality by
another will not do for us."  (`Abdu'l-Baha, _Foundations of World
" man should blindly follow his ancestors and forefathers.  Nay
each must see with his own eyes, hear with his own ears and investigate
truth himself in order that he may follow the truth instead of blind
acquiescence and imitation of ancestral beliefs." (`Abdu'l-Baha,
_Promulgation of Universal Peace_, 450)
`Abdu'l-Baha explained, "know ye that God has created in man the power
of reason, whereby man is enabled to investigate reality.  God has not
intended man to imitate blindly his fathers and ancestors.  He has
endowed him with mind, or the faculty of reasoning, by the exercise of
which he is to investigate and discover the truth, and that which he
finds real and true he must accept.  He must not rely implicitly upon
the opinion of any man without investigation; nay, each soul must seek
intelligently and independently, arriving at a real conclusion and
bound only by that reality.  The greatest cause of bereavement and

disheartening in the world of humanity is ignorance based upon blind
Further, "man must endeavor in all things to investigate the
fundamental reality.  If he does not independently investigate, he has
failed to utilize the talent God has bestowed upon him."
`Abdu'l-Baha explained that the concept of the independent
investigation of truth refers to the investigation of the underlying
unity of the fundamental, original teachings of all the religions of
the past:  "Man must cut himself free from all prejudice and from the
result of his own imagination, so that he may be able to search for
truth unhindered.  Truth is one in all religions...All the peoples have
a fundamental belief in common.  Being one, truth cannot be divided,
and the differences that appear to exist among nations only result from
their attachment to prejudice.  If only men would search out truth,
they would find themselves united." (`Abdu'l-Baha, _Paris Talks_, 129)
"In order to find truth we must give up our prejudices, our own small
trivial notions; an open receptive mind is essential.  If our chalice
is full of self, there is no room in it for the water of life.  The
fact that we imagine ourselves to be right and everybody else wrong is
the greatest of all obstacles in the path towards unity, and unity is
necessary if we would reach truth, for truth is one...
"Science must be accepted.  No one truth can contradict another truth.
Light is good in whatsoever lamp it is burning!  A rose is beautiful in
whatsoever garden it may bloom!...
"...we must be willing to clear away all that we have previously
learned, all that would clog our steps on the way to truth; we must not
shrink if necessary from beginning our education all over again."
(`Abdu'l-Baha, Paris Talks, 136)