Nichiren was a famous 13th-century Japanese Buddhist priest (1222–1282) who was the leader of the Kamakura period of Buddhist schools.
One of his many writings said, “Never let hardships disturb you. After all, no one can avoid problems, not even saints or sages. Could there ever be a more wonderful story than your own? Suffer what there is to suffer. Enjoy what there is to enjoy. Regard both suffering and joy as facts of life.”
“That which you give to another will become your own sustenance; if you light a lamp for another, your own way will be lit.”
“Worthy persons deserve to be called so because they are not carried away by ‘the eight worldly winds’: prosperity, decline, disgrace, honor, praise, censure, suffering, and pleasure. They are neither elated by prosperity nor grieved by decline. The heavenly gods will surely protect one who is unbending before ‘the eight worldly winds’ or eight transient, external influences. Cultivating equanimity and maintaining an unswayed, wise mind in the face of these experiences leads to lasting happiness and liberation.
“Whether one has wealth or not, no treasure exceeds the one called life. Do not go about complaining how hard it is to live in this world. such behavior is entirely unworthy of a real man. A coward cannot have any prayer answered.”
“Summoning up the courage to take action is always the same regardless of how seemingly big or small the challenge. What may look like a small act of courage is courage nonetheless. The important thing is to be willing to take a step forward.”
https://www.azquotes.com/author/19668-Nichiren, https://en.wikipedia.org/wiki/Nichiren_Buddhism