In “On Repaying Debts of Gratitude,” the Daishonin writes, “If Nichiren’s compassion is truly great and encompassing, Nam-myoho-renge-kyo will spread for ten thousand years and more, for all eternity” (WND-1, 736). We must remember that kosen-rufu advances due to the boundless compassion of the Daishonin. It is our supreme honor to shoulder that noble undertaking.
From The Wisdom for Creating Happiness and Peace, part 3, revised edition, p. 351

Daisaku Ikeda

For example, you meet and talk with someone, you chant for someone’s happiness, or you write a postcard or letter to someone. Perhaps someone you arranged to meet didn’t show up, but you continue to stay in touch and meet with them again and again. These may seem like small things, and you may sometimes feel you’re not getting anywhere. But when you look back later, you’ll see that none of your efforts were wasted.
From The Wisdom for Creating Happiness and Peace, part 1, revised edition, p. 238

Daisaku Ikeda

When we have a positive and appreciative attitude toward our communities, it will give greater confidence and impetus to our activities. The joy of kosen-rufu will spread.
>From The Wisdom for Creating Happiness and Peace, part 1, revised edition, p. 139

Daisaku Ikeda