I will not attempt in the least to assert or demonstrate the authenticity of the Will and Testament of 'Abdu'l-Baha, for that in itself would betray an apprehension on my part as to the unanimous confidence of the believers in the genuineness of the last written wishes of our departed Master. I will only confine my observations to those issues which may assist them to appreciate the essential unity that underlies the spiritual, the humanitarian, and the administrative principles enunciated by the Author and the Interpreter of the Baha'i Faith. (4:1)

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