Bahá'u'lláh emphasizes the fundamental obligation of human beings to acquire knowledge with their "own eyes and not through the eyes of others." One of the main sources of conflict in the world today is the fact that many people blindly and uncritically follow various traditions, movements, and opinions. God has given each human being a mind and the capacity to differentiate truth from falsehood.
Bahá'ís believe that, as there is only one reality, all people will gradually discover its different facets and will ultimately come to common understanding and unity, provided they sincerely seek after truth. In this connection, 'Abdu'l-Bahá said:
Being one, truth cannot be divided, and the differences that appear to exist among the many nations only result from their attachment to prejudice. If only men would search out truth, they would find themselves united.
And further:
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.