In ancient times, a little boy named Tokusho offered a rice cake made of sand to the Buddha. Due to this merit he was reborn as the Emperor the king of Jambudvīpa. You have donated five shō of polished rice. How can you not become a Buddha? This will be especially so in this period of hunger and thirst!

Hakumai Wakame Gosho, A Letter of Polished Rice and Wakame Seaweed, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 170

[I]f we are to believe in the Buddha’s will, we must comprehend the teachings of all the other sūtras as reflected upon the clear mirror of the Lotus Sūtra. Now, it is stated in the Lotus Sūtra: “The Lotus Sūtra is above all the other sūtras.” This means that just as Indra resides on the top of Mt. Sumeru, or a wish-fulfilling gem exists on the head of the Wheel-turning Noble King, or the moon shines over various trees, or a protuberance is seen on the head of Buddhas, the Lotus Sūtra is a wish-fulfilling gem placed above all the Buddhist sūtras.

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

How fortunate I am! I am spreading the teaching of the Lotus Sūtra, confronting many persecutions and difficulties in this Latter Age of Degeneration just as it is foretold in the Lotus Sūtra, chapter 13 on “The Encouragement for Upholding This Sūtra”: “Those who spread this Lotus Sūtra after the death of the Buddha will be persecuted and chased out of monasteries often.” I should be proud of myself. I am writing this as a response to everyone, so I believe I do not need to explain this in detail.

Toki-dono Go-henji, A Response to Lord Toki, Writings of Nichiren Shōnin, Doctrine 2, Page 181

It is said in a non-Buddhist writing that those who can predict things before they actually take place can be called sages. In Buddhism, those who see life in the past, present, and future are called sages. I made three outstanding predictions. …

It was not I, Nichiren, who made these three important predictions. I believe it was solely the spirit of Śākyamuni Buddha, entering my body, who made them. I am overwhelmed with joy. This is the important 3,000 Existences Contained in One Thought doctrine of the Lotus Sūtra. According to it, a mind of any person is equipped with the seed of Buddhahood, which could grow to blossom in his mind when he upholds the right faith. As a result, his mind could function like that of the Buddha. This is what happened to me, Nichiren, when I made these three predictions. Due to my faith in the Lotus Sūtra, I was able to see things before they actually took place. What is the meaning of “appearances of all phenomena as they are” as stated in the Lotus Sūtra? Since “appearance” is mentioned first among the ten factors of existence, it is the most important among them and the Buddha has come into this world in order to expound it. The appearance of a thing represents its reality. So we can grasp its reality when we see through its appearance clearly, and in turn we can predicts what would happen in the future. This is what was meant by Grand Master Miao-lé when he said that wise men know the cause of phenomena and only snakes know about snakes.

Senji-shō, Selecting the Right time: A Tract by Nichiren, the Buddha’s Disciple, Writings of Nichiren Shōnin, Doctrine 1, Page 243-244

The Nirvana Sūtra, the “Four Reliances” chapter, preaches the “Four Reliances” in person and in dharma. The former is the four ranks of bodhisattvas upon whom Buddhists relied on for guidance after the death of the Buddha, and the latter is the four standards which Buddhists must follow: (1) to follow the true teaching, not persons; (2) to follow the meaning of the teaching, not the words; (3) to follow the wisdom of the Buddha, not the knowledge of the people; and (4) to follow the Lotus Sūtra, which is the true teaching, not the pre-Lotus sūtras. These are the basic teaching in practicing Buddhism.

Ichidai Goji Keizu, Genealogical Chart of the Buddha’s Lifetime Teachings in Five Periods, Writings of Nichiren Shōnin, Doctrine 3, Page 244

Nobody, regardless of high and low, however, believes that I, Nichiren, am a practicer of the Lotus Sūtra. People must be wondering why Nichiren, who claims to be a practicer of the Lotus Sūtra, is confronted by many persecutions and difficulties while the sūtra preaches that one who practices Buddhism is at peace in this world and will be reborn in a better place in future lives. It must be that, they believe, Nichiren is not in accordance with the true intent of the Buddha.

Expecting such a vicious criticism from the beginning, I am not surprised even if I am exiled at the displeasure of the ruler of Japan because it is clearly stated in the Lotus Sūtra that one who practices the teachings of the Lotus Sūtra in the Latter Age of Degeneration will be confronted by many difficulties.

Hakii Saburō-dono Go-henji, A Response to Lord Hakii Saburō, Writings of Nichiren Shōnin, Doctrine 2, Page 183

Everything must be suitable to the time. They say that cherry blossoms bloom in spring and the moon looks best in autumn. This saying shows the importance of timing. The reason why Śākyamuni Buddha appeared in this world was to expound the Lotus Sūtra, the True Dharma. Nevertheless, He did not preach it for 40 years or so after attaining Enlightenment. The Lotus Sūtra, the Expedients chapter, tells of the reason why the Buddha did not expound the Lotus Sūtra for more than 40 years, “It was because the time to preach it was not ripe.”

Ueno-dono Gohenji, Reply to Lord Ueno, Writings of Nichiren Shōnin, Followers II, Volume 7, Page 34

King Ajātaśatru’s skin disease was caused by committing the five rebellious sins and the sin of slandering the True Dharma. When the Buddha entered the Moon Love Meditation emitting rays of a pure light that shone on the body of the king, the rash of Ajātaśatru disappeared instantly and his remaining life span of three weeks was extended by as long as forty years. Therefore, King Ajātaśatru gathered 1,000 arhats to write down the holy teachings of the Buddha expounded during His lifetime so that the Buddhist sūtras remained to be spread after the passing of the Buddha throughout the Age of the True Dharma, that of the Semblance Dharma, and the Latter Age of Degeneration.

Now, your skin disease was caused solely by the sin of slandering the True Dharma. What is more, the Lotus Sūtra which you embrace is superior to the Moon Love Meditation. How then can you not cure the light skin disease and live long? If you find in the end my words have no effect, you should shout, “The Buddha, the eyes of the whole world, is a big liar; the One Vehicle teaching of the Lotus Sūtra is meaningless and false; if you are concerned for your reputation, please Śākyamuni Buddha carry out Your vow to save living beings, and many wise and holy beings who vowed before the Buddha to protect the Lotus Sūtra, come to help me.” Writing cannot wholly express my words and words cannot fully express what is in my mind. I hope to tell you more in detail when I see you.

Ōta Nyūdō-dono Gohenji, A Reply to Lay Priest Lord Ōta, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 37

Therefore, as your late husband chanted “Namu Myōhō Renge Kyō” at the last moment of life, evil karma which he committed during his life or innumerable kalpa (aeons) since the eternal past will be fully transformed into the seed of Buddhahood. This is the doctrine of “evil passions are themselves enlightenment,” “birth and death are themselves Nirvana,” and “attaining Buddhahood with the present body.”

Myōhō-ama Gozen Gohenji, A Reply to My Lady, the Nun Myōhō, Writings of Nichiren Shōnin, Faith and Practice, Volume 4, Page 142