January 9

…difference and variety is inherent and innate in the parts and members of man, which afford the means for revealing perfections, and since these members and parts (of the human organism) are under the control of the king of the spirit, the spirit interpenetrates the parts and governs even the veins and arteries. This difference and variety then is no barrier to oneness and love governed by the spirit. This diversity is indeed the greatest power of unity. 
- ‘Abdu’l-Baha  (From a Tablet; Star of the West, vol. 6, no. 9, August 20, 1915)