In winter … trees appear dead, but pine and oak trees do not wither; grasses die, but chrysanthemums and bamboos remain unchanged. The same is true with the Lotus Sūtra, which will remain forever helping people even after other sūtras all disappear. Śākyamuni Buddha declared in the tenth chapter on “The Teacher of the Dharma” of the Lotus Sūtra that the Lotus Sūtra was supreme of all the sūtras He had preached, was preaching, and would be preaching. Moreover, in the eleventh chapter on the “Appearance of the Stupa of Treasures” the Buddha of Many Treasures attested the Lotus Sūtra to be true; and in the twenty-first chapter on “The Divine Powers of the Buddha” Buddhas manifested in various worlds all over the universe also verified the truth of the Lotus Sūtra by touching the Brahma Heaven with their tongues. Their sole purpose was to have the dharma of the Lotus Sūtra last forever in this world.

Shugo Kokka-ron, Treatise on Protecting the Nation, Writings of Nichiren Shōnin, Doctrine 1, Page 25