July 31

…the breeding-ground of all these tragedies [First World War] is prejudice: prejudice of race and nation, of religion, of political opinion; and the root cause of prejudice is blind imitation of the past—imitation in religion, in racial attitudes, in national bias, in politics. So long as this aping of the past persisteth, just so long will the foundations of the social order be blown to the four winds, just so long will humanity be continually exposed to direst peril. 
- ‘Abdu’l-Baha  (‘Selections from the Writings of ‘Abdu’l-Baha’)