Suffering is the teacher of life, Du. Through suffering, wisdom moves towards joy. -Beethoven

It is good for a person to have some rebellious experiences, otherwise he will be depressed unconsciously. People are afraid that they will fall, and others will not fall. —— Guo Moruo

Life is like a flood, and it is difficult to stir up beautiful waves without encountering islands and reefs.

Ostrovsky

Seeds do not fall in fertile soil, but in rubble. Vital seeds will never sigh pessimistically, because they are tempered by resistance. Xia Yan

Even if you fall a hundred times, you should stand up a hundred and one times. -Zhang Haidi

Difficulty and torture is a hammer hitting a blank, trying to knock out fragile iron filings and forge a sharp steel knife. -Chekhov

We must exploit the mineral resources of human wisdom through adversity. Powder needs pressure to ignite.

-Dumas

If we have accepted the worst, we have nothing to lose. Carnegie

There is only one road to the truly great realm of mankind-the road of suffering.

-Einstein

God has put many obstacles in our way just to strengthen our will. Tagore