But regarding teaching the Truth: One must teach with wisdom, amiability, good-naturedness and kindness. And should anyone circumscribe conditions (for teaching the Truth) it will become rare.
But concerning the established (organized assemblies), altogether outside conversation must not be introduced therein. Nay, rather, conversation must be limited to the reading of verses, the perusing of Words and affairs which pertain to the Cause of God, such as explaining proofs and evidences, delivering clear and irrefutable arguments and announcing the signs of the Beloved of the creatures.
Those souls who are in that assembly before their entrance therein must be adorned with utmost purity, turn their faces toward the Kingdom of Abha and enter with infinite humility and meekness, and when someone reads Tablets they must be silent and attentive. Should anyone desire to speak, he must do it with the utmost courtesy and with perfect eloquence and fluency by the consent and permission of the people of the assembly.
Upon thee be greeting and praise!
(Signed) 'Abdu'l-Baha Abbas
(Star of the West, vol. 2, no. 6, June 24, 1911)