報恩抄

根ふかければ枝しげし
源遠ければ流ながし
（御書全集　329㌻）

The deeper the roots, the more prolific the branches.
The farther the source, the longer the stream.
-The Writings of Nichiren Daishonin, vol. 1
(Tokyo: Soka Gakkai, 1999), p.736