As to your third question Shoghi Effendi would like you to
understand that when one believes in One to be divinely inspired and when one
is convinced that He has a great mission to the world in His teachings, he must
very naturally be ready to accept all that that world-teacher that
divinely-inspired Man says. It is with this view that he feels that a real
Baha'i would be one who is convinced that Baha'u'llah was a world-teacher and a
Messenger of God bearing to mankind a great Message and would therefore be
ready to accept all that Baha'u'llah has said and the same is true of the
Master, Whom we believe to have been the great propounder of the Baha'i
teachings and the One through Whom the Covenant of God was firmly established
in the world.
(From a letter dated 15 February 1926 written on behalf of the
Guardian to an individual believer; compilation on scholarship prepared by the
Research Department of the Universal House of Justice, 1979)