Independent investigation of truth

Man must independently investigate the reality; for the disagreements and dissensions which afflict and affect humanity, primarily proceed from imitations of ancestral beliefs and adherences to hereditary forms of worship. These imitations are accidental and without sanction in the holy books. They are the outcomes of human interpretations and teachings which have arisen, gradually obscuring the real light of divine meaning and causing men to differ and dissent. The reality proclaimed in the heavenly books and divine teachings is ever conducive to love, unity and fellowship.
‘Abdu’l-Bahá, ‘Abdu’l-Bahá in Canada 39

References

Danesh, John. Fazel, Seena. Search for Values: Ethics in Bahá’í Thought