1. Russia? Pushkin's If Life Deceives You: If Life Deceives You, don't be depressed or indignant! Temporarily tolerate when things are not going well; Believe it, happy days will come.

Beethoven, Germany: Pain can destroy people, and people who suffer can also destroy pain. Creation requires suffering, and suffering is a gift from God. One of the great advantages of outstanding people is their perseverance in unfavorable and difficult encounters.

third, China in modern times? Xia Yan's Selected Works of Xia Yan: Adversity gives people precious opportunities for tempering. Only those who can stand the test of the environment can be regarded as the real strong.

fourth, India? Tagore's Selected Poems of Tagore: Only through hellish tempering can we forge the power to create heaven; Only a bloody finger can play the swan song of the world.

5. German Marx: There is no royal road to science, and only those who do not dread the fatiguing climb along steep mountain roads can hope to reach its glorious summit.