The most important foundation of Buddhist practice according to Nichiren and according to Soka Gakkai

"Fundamental to achieving genuine advancement and victory, is the spirit of oneness of mentor and disciple, which is also the most important foundation of Buddhist practice..." -- top SGI leader

"Namu-myoho-renge-kyo, should be their foundation." -- Nichiren

"Faith in the Lotus Sutra is the foundation." -- Nichiren

"The Lotus Sutra is the heart and core of the sacred teachings expounded by Shakyamuni Buddha during the course of his lifetime, the foundation of all the eighty thousand doctrines of Buddhism." -- Nichiren