Grand Master T’ien-t’ai states in the sixth fascicle of the Great Concentration and Insight, “The icchantika has a slim possibility to attain Buddhahood because he has some mind left, but the Two Vehicles cannot because they want their mind and body annihilated. In the Lotus Sūtra, however, the Two Vehicles are allowed to attain Buddhahood, so the sūtra is called ‘myō’.” Grand Master Miao-lê also says in the sixth fascicle of the Annotations on the Great Concentration and Insight, “Various sūtras call themselves ‘great,’ not ‘wonderful’ because they can lead those with heart, but not without heart, to Buddhahood. The Lotus Sūtra, however, can lead those without heart to Buddhahood, so it is called the ‘wonderful’ sūtra.” These passages mean that only the Chinese character for “great,” not that for “wonderful,” was put on each title of such sūtras as the Great Flower Garland Sūtra, the Sūtra of Great Assembly, the Great Wisdom Sūtra and the Great Nirvana Sūtra. These sūtras can save only people who are still alive but not dead ones, while the Lotus Sūtra can save dead people as well, which is why the sūtra is called “wonderful.” Therefore, those who are entitled to attain Buddhahood cannot do so by various other sūtras, while even those who have difficulty in attaining Buddhahood can become Buddhas by the Lotus Sūtra, let alone those who are easily capable of doing so. Accordingly, no one should rely on various other sūtras after the Lotus Sūtra was expounded.

Hokke Daimoku Shō, Treatise on the Daimoku of the Lotus Sūtra, Writings of Nichiren Shōnin, Faith and Practice, Volume 4, Page 46