For 400 years, since the reign of Emperor Kanmu, the capacity of all the people in Japan to understand and embrace the Lotus Sūtra exclusively has reached fruition. Their capacity to understand the Dharma is similar to those who heard the Lotus Sūtra expounded by Śākyamuni Buddha on Mount Sacred Eagle for eight years. (This is proven in the writings of Grand Master T’ien-t’ai, Prince Shōtoku, Venerable Chien-chên, Grand Master Dengyō, Venerables Annen and Eshin.) Those who perceive this correctly are men who understand the capacity of people.
Kyō Ki Ji Koku Shō, Treatise on the Teaching, Capacity, Time and Country, Writings of Nichiren Shōnin, Doctrine 3, Page 101