…there is need of a superior power to overcome human prejudices, a power which nothing in the world of mankind can withstand and which will overshadow the effect of all other forces at work in human conditions. That irresistible power is the love of God. It is my hope and prayer that it may destroy the prejudice of this one point of distinction between you and unite you all permanently under its hallowed protection. Bahá’u’lláh has proclaimed the oneness of the world of humanity. He has caused various nations and divergent creeds to unite. He has declared that difference of race and color is like the variegated beauty of flowers in a garden. If you enter a garden, you will see yellow, white, blue, red flowers in profusion and beauty—each radiant within itself and although different from the others, lending its own charm to them. Racial difference in the human kingdom is similar. If all the flowers in a garden were of the same color, the effect would be monotonous and wearying to the eye.
Therefore, Bahá’u’lláh hath said that the various races of humankind lend a composite harmony and beauty of color to the whole. Let all associate, therefore, in this great human garden even as flowers grow and blend together side by side without discord or disagreement between them.
- 'Abdu'l-Baha (From a talk, 30 April 1912, Chicago; ‘The Promulgation of Universal Peace: Talks Delivered by 'Abdu'l-Bahá during His Visit to the United States and Canada in 1912’)