The Buddha willed us, “Rely on the Dharma, not on a man.” Accordingly we should not believe in anyone, no matter how great a wise man he is, unless he preaches according to the sūtra, shouldn’t we? The Buddha’s will also enjoins us, “Rely on the sūtra thoroughly revealing the truth, not the sūtra not thoroughly revealing the truth.” Therefore, those who are ignorant and unable to distinguish the order of preaching and the profundity or superiority of doctrine among all the holy teachings expounded by the Buddha during His lifetime should follow the sūtras thoroughly revealing the truth. Speaking of sūtras thoroughly or not thoroughly revealing the truth, they are numerous. The Āgama Hinayana sūtras do not thoroughly reveal the truth while such sūtras as the Flower Garland Sūtra, the Hōdō sūtras, the Wisdom Sūtra, and the Sūtra of Meditation on the Buddha of Infinite Life of the Pure Land School are those thoroughly revealing the truth compared to the Āgama sūtras. Compared to the Lotus Sūtra, those preached by the Buddha in the first 40 years or so following His attainment of Buddhahood do not thoroughly reveal the truth. Compared to the Lotus Sūtra, the Nirvana Sūtra does not reveal the truth thoroughly. Compared to the Lotus Sūtra, the Great Sun Buddha Sūtra is not the one thoroughly revealing the truth. Therefore, you should abandon all the sūtras preached during the 40 years or so as well as the Nirvana Sūtra, which was preached last, and follow the Lotus Sūtra as your teacher.

Shō Hokke Daimoku-shō, Treastise on Chanting the Daimoku of the Lotus Sūtra, Writings of Nichiren Shōnin, Faith and Practice, Volume 4, Page 13-14

The purpose of the Tripiṭaka teaching is to emancipate people from the Six Realms of the triple world. As a result, because the teaching reveals no place but the triple world to attain emancipation, śrāvaka and pratyekabuddha are unaware of the existence of the Pure Land where bodhisattvas are born. They also do not know that they still possess other evil passions and attachments besides the delusions in view and thought. Śrāvakas and pratyekabuddhas believe they will eliminate the cause of being reborn in the triple world if they do away with the delusions in view and thought and that they will exist in a void where there is no body or mind, since they will have transformed the body to ashes and annihilated consciousness. Thus it is said that men of the two Vehicles cannot be saved by the Tripiṭaka teaching, and that they will never be able to become Buddhas without the teaching of the Lotus Sūtra.

Ichidai Shōgyō Tai-I, Outline of All the Holy Teachings of the Buddha, Writings of Nichiren Shōnin, Doctrine 3, Page 72

Grand Master Miao-lê defines in his Annotations on the Words and Phrases of the Lotus Sūtra (Fahua wén-chü-chi) that all the śrāvaka and pratyekabuddha who attached themselves to Hinayana enlightenment, and bodhisattvas who believe in the Buddha’s attaining enlightenment in this world without believing in the eternal life of the Buddha are those who hate the Lotus Sūtra. He also declares that those who do not want to listen to, believe in or accept the Lotus Sūtra are “haters ” of the Lotus Sūtra even if they do not slander it publicly.

As I contemplate the state of affairs today after the death of the Buddha against that in His lifetime, scholars of various sects today are all like heretics during the days of the Buddha. They called the Buddha the worst, and it fits me, Nichiren, today. “Evil people in the world all coming together to join His group” fits Nichiren’s disciples. Misunderstanding the teachings expounded by the past Buddhas in the previous lives, heretics harbored evil thoughts, hated and persecuted Śākyamuni Buddha in this world. Scholars of various Buddhists sects today are acting similarly to those heretics in the past. In a word, they misunderstand what the Buddha preached and this misunderstanding leads them to hold wicked ideas. It is like a dizzy man seeing a great mountain turning around.

Teradomari Gosho, A Letter from Teradomari, Writings of Nichiren Shōnin, Doctrine 2, Page 10

In determining the comparative superiority of all sūtras preached during His lifetime in the main discourse of the Lotus Sūtra proper, Śākyamuni Buddha uttered these golden words in the tenth chapter on the “Teacher of the Dharma”: “The sūtras I have preached number immeasurable thousands, ten thousands, and hundred millions. Of the sūtras I have preached, am now preaching, and will preach, this Lotus Sūtra is the most difficult to believe and the most difficult to understand.” Just then the Buddha of Many Treasures emerged from underground in the eleventh chapter on the “Appearance of the Stupa of Treasures” to testify, “What is said in the Lotus Sūtra is all true,” while Buddhas manifested in the numerous worlds all over the universe came together in the 21st chapter on the “Divine Powers of the Buddha” to attest it to be the truth by touching the Brahma Heaven with their tongues.

Taking these into consideration, I guess it is in my own hands to compare the superiority and profundity in doctrine or difficulty in practice among sūtras as numerous as the number of dust particles in the whole universe, including those transmitted to China and Japan, more than 5,000 fascicles in old translations and more than 7,000 fascicles in new translations; those which have not been transmitted but existed in India, the Dragon’s Palace and the Four-king Heavens; those preached by the Past Seven Buddhas and those left out of Ananda’s collection.

How can the “immeasurable thousands, ten thousands, and hundred millions of sūtras” referred to in the “Teacher of the Dharma” chapter of the Lotus Sūtra not include every sūtra preached by Śākyamuni Buddha? Is there any sūtra that does not fall into the time-span of the Buddha’s preaching when He “has preached, now preaches, and will preach” them?

Shugo Kokka-ron, Treatise on Protecting the Nation, Writings of Nichiren Shōnin, Doctrine 1, Page 19

It is stated in the Collection Concerning the Immediate Attainment of Buddhahood by Grand Master Jikaku:

“The Buddha’s wish to teach and save the people is fulfilled in the Lotus Sūtra. Thus, the Buddha emerges in this world and expounds the Lotus Sūtra. While practicing the bodhisattva way before attaining Buddhahood, various Buddhas take four great vows to save the people by causing them to eliminate delusions, master the teaching of the Buddha, and attain Buddhahood. If they complete the practice and are endowed with its resulting merits, they can fulfill the last three vows of the Four Great Vows. However, it is difficult for them to accomplish the first vow to lead the people and enable them to eliminate delusions. Not even the Flower Garland Sūtra can enable the people in the Ten Realms (from the realm of Buddhas to hell) to attain Buddhahood. The same is true with the Āgama sūtras, the Hōdō (various Mahāyāna) sūtras, and the Wisdom Sūtra. Though expounding all the teachings again after the Lotus Sūtra, the Nirvana Sūtra cannot accomplish the Buddha’s will to enable all the people to attain Buddhahood. Now it becomes clear that all living beings of the Ten Realms can attain Buddhahood by the teaching of the Lotus Sūtra. Devadatta who had once fallen into the Hell of Incessant Suffering was assured in the Lotus Sūtra to become Heavenly King Buddha; the daughter of a dragon king and the ten female rākṣasa demons attained Buddhahood; an asura demon was assured of future Buddhahood, and bodhisattvas in the realm of men, heavenly beings and the Two Vehicles and all bodhisattvas who mastered the teachings other than the Lotus Sūtra are all able to enter the perfect realm of the Buddha. It is preached in the “Expedient” chapter of the Lotus Sūtra that the Buddha has accomplished His Vow to lead all the people to the way of the Buddha. Since the realm of men is limitless, there still are people who have not entered the way of the Buddha. However, all the people of the Ten Realms will surely attain Buddhahood solely by the strength of the Lotus Sūtra. The Lotus Sūtra fulfills the will of the Buddha to save all the people.”

Nizen Nijō Bosatsu Fu-sabutsu Ji, Never-Attaining Buddhahood by the Two Vehicles and Bodhisattvas in the Pre-Lotus Sūtras, Writings of Nichiren Shōnin, Doctrine 3, Page 222

Chapters 12 and 23 of the Lotus Sūtra, “Devadatta” and the “Previous Life of the Medicine-King Bodhisattva,” both preach the attainment of Buddhahood by women, but chapter 12 is a branch of chapter 2 and chapter 23 is a branch of chapter 16. Therefore, I recommend that you make a point of chanting chapters 2 and 16 daily and the other chapters sometimes when you have free time.

Gassui Gasho, A Letter on Menstruation, Nyonin Gosho, Letters Addressed to Female Followers, Page 32

The character Myō in the Myōhō Renge Kyō (Sūtra of the Lotus Flower of the Wonderful Dharma) was verified by the tongues of the two Buddhas (Śākyamuni and Many Treasures). The tongues of these two Buddhas are an eightfold double-blooming lotus flower. A wish-fulfilling gem, on top of this double-blooming lotus flower, is the character Myō. This wish-fulfilling gem, the character Myō, contains all the merits of Śākyamuni Buddha’s Six Paramita (the six kinds of practice by which He attained Buddhahood). In a previous life, Śākyamuni offered His own body to a hungry tiger and sacrificed His life to a hawk to save a dove (charity). When He was King Śrutasoma, he did not violate the Buddhist precepts even at the cost of his life (precepts). When he was Hermit Forbearance, he willingly endured the tortures of King Kālika cutting off his four limbs (forbearance). When he was Prince Dāna, he devoted his life to finding a wishfulfilling gem to save people (effort). When he was the Hermit Shōjari, he did not move until the eggs that a heron placed on his head hatched (meditation). And so on. Therefore, we in the Latter Age of Degeneration who simply believe in the Lotus Sūtra are able to receive the same merit gained by practicing the Six Pāramitā in full even if we haven’t performed any good deeds.

Nichimyō Shōnin Gosho, A Letter to Nichimyō Shōnin, Writings of Nichiren Shōnin, Followers II, Volume 7, Page 138-139

[T]he Buddha of Many Treasures attested to the truth of the Lotus Sūtra (in the “Beholding the Stupa of Treasures” chapter), and the numerous Buddhas in manifestation coming from all the worlds in the universe verified the truthfulness of the sūtra by extending their long tongues to reach the Brahma Heaven (in the “Divine Powers of Buddhas” chapter). Thus the “three” Buddhas of Śākyamuni, the Buddha of Many Treasures, and the numerous Buddhas in manifestation verify the truth of the Lotus Sūtra. Therefore, we can say that while the Lotus Sūtra is one book, it is worth three books, its one phrase is worthy of three phrases, and one word is worthy of three words. That is to say, one written Chinese character in the Lotus Sūtra is equipped with the merits of these “three” Buddhas; it is like a wish-fulfilling gem. Regarding the wish-fulfilling gem, one equals a hundred. One gem produces immeasurable treasures while a hundred gems are also equipped with inexhaustible treasures. Suppose we grind a hundred kinds of herbs to make one or a hundred pills. Either one or one hundred, the pill has the same effect as the cure for an illness. This is like one drop of the ocean water being composed of the water of many rivers and one ocean includes the flavors of many rivers. Likewise, the Sūtra of the Lotus Flower of the Wonderful Dharma is a general term for the one book consisting of twenty-eight chapters and each of the twenty-eight chapters has a particular name. Gasshi (Yüeh-shih) is the general term for India, which is also called Gotenjiku (five regions of India). Japan is the general name for our country, and each of the sixty-six provinces of Japan has its own specific name.

Shijō Kingo-dono Gohenji, Response to Lord Shijō Kingo, Writings of Nichiren Shōnin, Followers I, Volume 6, Page 118

In their petition they also accuse Nichiren of being affixed solely to the Lotus Sūtra and slandering all other Mahāyāna sūtras. However, this is not my idea but the Buddha Himself declared in the Sūtra of Infinite Meaning, “The truth has not been revealed for forty years or so,” and in the Lotus Sūtra, “The truth will be expounded in this sūtra,” and “The truth will be revealed and expounded explicitly.” The Buddha of Many Treasures further attested to the truth by saying, “The teachings that have been expounded are all true.” Numerous Buddhas from all the worlds throughout the universe also approved these to be true by “touching the Brahma Heaven with their tongues.” Comparing the Lotus Sūtra with the sūtras that had been preached, are being preached, and will be preached, the Buddha only praised the Lotus Sūtra. So did other Buddhas. This is not my personal view. Besides, Grand Master Tokuitsu of the Hossō School in Nara tried to refute Grand Master Dengyō with the same criticism during the eras of Enryaku, Daidō, and Kōnin (782-824) and was defeated by Dengyō. As a result the Tendai Lotus School was established in Japan.

Gyōbin Sojō Goetsū, Understanding Gyōbin’s Petition, Writings of Nichiren Shōnin, Biography and Desciples, Volume 5, Page 6