1 Original Persian text first published Cairo 1922. This translation
taken from The Baha'i World, Vol. XV, pp. 37-43.
2 'Abdu'l-Baha is obviously referring to the letter from Forel
translated above and dated 28 December 1920.
3 'Abdu'l-Baha refers to His talk at Stanford University, Palo Alto,
California, in 1912, which was published in the local newspaper and
is also included in the collection of His talks in America, entitled
The Promulgation of Universal Peace.
4 There 'Abdu'l-Baha distinguishes the materialistic and empirical
philosophy of the modern West from the standard rationalistic
philosophy of the Greeks and Persians, and highlights the difference
between theories of the essence of nature and of the origin of man.