ty is indivisible
and not multiple. It is evident, therefore, that there is nothing of
greater importance to mankind than the investigation of truth.

The second teaching of Baha'u'llah is the oneness of the world of
humanity. Every human creature is the servant of God. All have been
created and reared by the power and favor of God; all have been blessed
with the bounties of the same Sun of divine truth; all have quaffed from
the fountain of the infinite mercy of God; and all in His estimation and
love are equal as servants. He is beneficent and kind to all. Therefore,
no one should glorify himself over another; no one should manifest pride
or superiority toward another; no one should look upon another with scorn
and contempt; and no one should deprive or oppress a fellow creature. All
must be considered as submerged in the ocean of God's mercy. We must
associate with all humanity in gentleness and kindliness. We must love all
with love of the heart. Some are ignorant; they must be trained and
educated. One is sick; he must be healed. Another is as a child; we must
assist him to attain maturity. We must not detest him who is ailing,
neither shun him, scorn nor curse him, but care for him with the utmost
kindness and tenderness. An infant must not be treated with disdain simply
because it is an infant. Our responsibility is to train, educate and
develop it in order that it may advance toward maturity.

The third teaching or principle of Baha'u'llah is that religion and
science are in complete agreement. Every religion which is not in
accordance with established science is superstition. Religion must be
reasonable. If it does not square with reason, it is superstition and
without foundation. It is like a mirage, which deceives man by leading him
to think it is a body of water. God has endowed man with reason that he
may perceive what is true. If we insist that such and such a subject is
not to be reasoned out and tested according to the established logical
modes of the intellect, what is the use of the reason which God has given
man? The eye is the organ of sense by which we view the world of outer
phenomena; hearing is the faculty for distinguishing sounds; taste senses
the properties of objects, such as bitter, sweet; smell detects and
differentiates odors; touch reveals attributes of matter and perfects our
communication with the outer world; yet after all, the circle and range of
perception by the five senses is excee