The great vow of Daishonin

Here I will make a great vow. Though I might be offered the rulership of Japan if I would only abandon the Lotus Sutra, accept the teachings of the Meditation Sutra, and look forward to rebirth in the Pure Land, though I might be told that my father and mother will have their heads cut off if I do not recite the Nembutsu—whatever obstacles I might encounter, so long as persons of wisdom do not prove my teachings to be false, I will never yield! All other troubles are no more to me than dust before the wind. 2/2

The Writings of Nichiren Daishonin
The Opening of the Eyes
Written to Shijo Kingo in February 1272