The world of humanity is like unto one kindred and one
family. Because of the climatic conditions of the zones through the passing
ages colors have become different. In the torrid zone on account of the
intensity of the effect of the sun throughout the ages the dark race appeared.
In the frigid zone on account of the severity of the cold and the
ineffectiveness of the heat the white race appeared. In the temperate zone the
yellow, brown and red races came into existence. But in reality mankind is one
race. Because it is one race unquestionably there must be union and harmony and
no separation or discord.
- ‘Abdu’l-Baha (From a Tablet, Star of the West, vol.
20, no. 1, April 1929)