Buddhist practice is not something we can carry out on our own. For, as the Daishonin says, “The winds of fame and profit blow violently, and the lamp of Buddhist practice is easily extinguished” (WND-1, 1027). It is vital that we encourage and support one another as we make our way forward. We need to be positive influences, or “good friends,” to one another.
From The Wisdom for Creating Happiness and Peace, part 3, revised edition, p. 153

Daisaku Ikeda

Toda realized that the devilish nature inherent in life underlies nuclear weapons, and he keenly sensed that the only way to vanquish it was through the power of the Buddha nature. Since human beings created nuclear weapons, they are also capable of eliminating them. Toda was convinced that the existence of the Buddha nature within human beings would open the way to nuclear abolition without fail.
>From The Wisdom for Creating Happiness and Peace, part 3, revised edition, p. 480

Daisaku Ikeda

Since life is eternal throughout the three existences of past, present, and future, our past karma may also assail us in the present in the form of some major problem or suffering. However, just as the cause of suffering lies within our lives, we also possess the power to transform our suffering into happiness. This is the power of the life state of Buddhahood.
>From The Wisdom for Creating Happiness and Peace, part 1, revised edition, p. 61

Daisaku Ikeda