According to Nichiren reverends Ryuei and Tsuchiya put filth in a precious jar

"I have long been recommending that Nichiren Buddhists familiarize themselves with the basic and universal values of Buddhism expressed in the Dhammapada." -- Ryuei

"I recommend you study the Dhammapada and apply it to your life." -- Tsuchiya

"Purna was berated for being the kind who would put filth [Hinayana] in a precious jar [the people]." -- Nichiren