When Love Is Realized

If love and agreement are manifest in a single family, that family will advance, become illumined and spiritual; but if enmity and hatred exist within it, destruction and dispersion are inevitable. This is likewise true of a city. If those who dwell within it manifest a spirit of accord and fellowship, it will progress steadily and human conditions will become brighter, whereas through enmity and strife it will be degraded and its inhabitants scattered. In the same way, the people of a nation develop and advance toward civilization and enlightenment through love and accord, and are disintegrated by war and strife. Finally, this is true of humanity itself in the aggregate. When love is realized and the ideal spiritual bonds unite the hearts of men, the whole human race will be uplifted, the world will continually grow more spiritual and radiant, and the happiness and tranquility of mankind be immeasurably increased.

Baha'i Faith
The Promulgation of Universal Peace

Wilson, Andrew, editor. World Scripture II. Universal Peace Federation, 2011, p. 1036 ['Abdu'l-Bahá. The Promulgation of Universal Peace. Bahá'i Publishing Trust, 1982].