Though we, as ordinary people, should just believe in and respect any founder of a Buddhist School, I, Nichiren, cannot resolve my doubts at all. In worldly matters, there can be only one sovereign of a country. If there are two, peace cannot be attained. If there are two masters in a home, unity will deteriorate. The same can be said for all the sūtras of Buddhism. One of them, whichever it may be, must be supreme to all other sūtras.

Therefore, if we follow the sūtras uttered by the Buddha without depending on masters and commentators, we shall see the superiority of the Lotus Sūtra, just as the whole world can be seen by anyone who is not blind under the shining sun in the blue sky. Its supremacy is beyond doubt!

Hōon-jō, Essay on Gratitude, Writings of Nichiren Shōnin, Doctrine 3, Pages 3-4.