Consequently, when thou traversest the regions of the world, thou shalt conclude that all progress is the result of association and cooperation, while ruin is the outcome of animosity and hatred. Notwithstanding this, the world of humanity doth not take warning, nor doth it awake from the slumber of heedlessness. Man is still causing differences, quarrels and strife in order to marshal the cohorts of war and, with his legions, rush into the field of bloodshed and slaughter.

Abdu’l-Baha, Selections from the Writings of Abdu’l-Baha

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