[I]f you practice the Lotus Sūtra, even a word or phrase of it, you can be sure to attain Buddhahood because it is the teaching that has a close relation with the people of Japan. It is like a magnet pulling pieces of metal, or water seeping everywhere. Japan has no relation with other teachings such the nembutsu which is like a fake magnet that can’t pull any metal, or a substance that looks like water but is not and does not seep everywhere.

Nanjō Hyōe Shichirō-dono Gosho, A Letter to Lord Nanjō Hyōe Shichirō, Writings of Nichiren Shōnin, Doctrine 3, Pages 143.