An article about the independent investigation of truth can be found at Key teachings — the search after truth. For further reflection on this subject, here are some quotations from the Bahá'í writings. Phrases shown as links lead to the source of the respective quotation in a Bahá'í reference website.

The Bahá'í Faith recognizes the unity of God and of His Prophets, upholds the principle of an unfettered search after truth, condemns all forms of superstition and prejudice, teaches that the fundamental purpose of religion is to promote concord and harmony, that it must go hand-in-hand with science, and that it constitutes the sole and ultimate basis of a peaceful, an ordered and progressive society.

[This quotation can be found in "The Faith of Bahá'u'lláh: A World Religion".]

If five people meet together to seek for truth, they must begin by cutting themselves free from all their own special conditions and renouncing all preconceived ideas. 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.

Therefore it is imperative that we should renounce our own particular prejudices and superstitions if we earnestly desire to seek the truth. Unless we make a distinction in our minds between dogma, superstition and prejudice on the one hand, and truth on the other, we cannot succeed. When we are in earnest in our search for anything we look for it everywhere. This principle we must carry out in our search for truth.

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! A star has the same radiance if it shines from the East or from the West. Be free from prejudice, so will you love the Sun of Truth from whatsoever point in the horizon it may arise! You will realize that if the Divine light of truth shone in Jesus Christ it also shone in Moses and in Buddha. The earnest seeker will arrive at this truth. This is what is meant by the "Search after Truth".

It means, also, that 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. We must not allow our love for any one religion or any one personality to so blind our eyes that we become fettered by superstition! When we are freed from all these bonds, seeking with liberated minds, then shall we be able to arrive at our goal.

'Seek the truth, the truth shall make you free.' So shall we see the truth in all religions, for truth is in all and truth is one!

Know thou of a truth that the seeker must, at the beginning of his quest for God, enter the Garden of Search. In this journey it behoveth the wayfarer to detach himself from all save God and to close his eyes to all that is in the heavens and on the earth. There must not linger in his heart either the hate or the love of any soul, to the extent that they would hinder him from attaining the habitation of the celestial Beauty. He must sanctify his soul from the veils of glory and refrain from boasting of such worldly vanities, outward knowledge, or other gifts as God may have bestowed upon him. He must search after the truth to the utmost of his ability and exertion, that God may guide him in the paths of His favour and the ways of His mercy. For He, verily, is the best of helpers unto His servants. He saith, and He verily speaketh the truth: "Whoso maketh efforts for Us, in Our ways shall We assuredly guide him." And furthermore: "Fear God and God will give you knowledge."

In this journey the seeker becometh witness to a myriad of changes and transformations, confluences and divergences. He beholdeth the wonders of Divinity in the mysteries of creation and discovereth the paths of guidance and the ways of his Lord. Such is the station reached by them that search after God, and such are the heights attained by those who hasten unto Him.

When once the seeker hath ascended unto this station, he will enter the City of Love and Rapture, whereupon the winds of love will blow and the breezes of the spirit will waft. In this station the seeker is so overcome by the ecstasies of yearning and the fragrances of longing that he discerneth not his left from his right, nor doth he distinguish land from sea or desert from mountain. At every moment he burneth with the fire of longing and is consumed by the onslaught of separation in this world. He speedeth through the Paran of love and traverseth the Horeb of rapture. Now he laugheth, now he weepeth sore; now he reposeth in peace, now he trembleth in fear. Nothing can alarm him, naught can thwart his purpose, and no law can restrain him. He standeth ready to obey whatsoever His Lord should please to decree as to his beginning and his end. With every breath he layeth down his life and offereth up his soul. He bareth his breast to meet the darts of the enemy and raiseth his head to greet the sword of destiny; nay rather, he kisseth the hand of his would-be murderer and surrendereth his all. He yieldeth up spirit, soul, and body in the path of his Lord, and yet he doeth so by the leave of his Beloved and not of his own whim and desire. Thou findest him chill in the fire and dry in the sea, abiding in every land and treading every path. Whosoever toucheth him in this state will perceive the heat of his love. He walketh the heights of detachment and traverseth the vale of renunciation. His eyes are ever expectant to witness the wonders of God's mercy and eager to behold the splendours of His beauty. Blessed indeed are they that have attained unto such a station, for this is the station of the ardent lovers and the enraptured souls.

The essence of all that We have revealed for thee is Justice, is for man to free himself from idle fancy and imitation, discern with the eye of oneness His glorious handiwork, and look into all things with a searching eye.