1. Steel is tempered by intense fire and rapid cooling, so it can be hard and fearless. Our generation has also been trained in struggles and terrible tests, and has learned not to give in in the face of life. —— Ostrovsky's "How Steel Was Tempered"

2. Only emotions that have withstood the test and experienced the hardships of life are true emotions. ——Gmarkkov's "Carnival Night"

3. Adversity gives people valuable opportunities for training. Only those who can withstand the test of the environment can be considered truly strong. Most of the great men since ancient times struggled through adversity with an indomitable spirit. ——Konosuke Matsushita's "Questions and Answers on Life"

4. I pray that please do not lead him to the path of peace and ease, but put him under the test and intensity of difficulties and challenges. Let him learn to stand upright in the storm, and let him learn to be compassionate to those who lose. ——McArthur, "The Gospel Preached by Jesus"

5. People with lofty life ideals are like a small boat in the sea. It will be hit by strong winds and waves at any time and sink to the bottom of the sea. But if a person has the ideal of communism and is infinitely loyal to this ideal, he can withstand any storm and difficult test. ——Wu Yunduo "Dedicate Everything to the Party"

6. The test becomes more huge, severe and complicated. It is more beneficial for those who are good at enduring trials. Pain, no matter how intense, loses its effectiveness for anyone who can see that it brings extraordinary benefits. ——Rousseau's "Social Contract"

7. Suffering is a test and tempering, and it is gritting one's teeth and digging out the stains on one's soul.

——Ba Jin's "Cold Night"