More proof of the principle of Succession Through the Scrolls of the Sutra and through the writingss of Nichiren Daishonin

"Volume fifteen of the Nirvana Sutra states, “My wish is that all living beings will accept and uphold the words and letters of the Buddhist teachings.” And the Sutra on Resolving Doubts about the Middle Day of the Law says, “It is through the use of words and letters that living beings are saved and can attain enlightenment.” -- Nichiren