Anyone who believes in the Lotus Sutra could ever be dragged down by worldly faults and fall into the evil paths

Even if the sun and moon should never again emerge from the east, even if the great earth itself should turn over, even if the tides of the great ocean should cease to ebb and flow, even if broken stones are made whole, and even if the waters of the streams and rivers cease to flow into the ocean, no woman who believes in the Lotus Sutra could ever be dragged down by worldly faults and fall into the evil paths.

The Writings of Nichiren Daishonin
The Recitation of the "Expedient Means" and "Life Span" Chapters
Written to the wife of Hiki Daigaku Saburo Yoshimoto on April 17, 1264