It is not difficult to endure disasters, but it is never easy to endure disasters. Seneca
3. Difficulties and torture are a hammer that hits the blank for people. What is to be knocked out is fragile iron filings, and what is to be forged is sharp steel. -Chekhov
4. A gentleman is virtuous when he is poor, and beneficial when he is in adversity. -Lu Jiuyuan
Even if you fall a hundred times, you should stand up a hundred and one times. -Zhang Haidi
6. Running water will only release its vitality when it encounters conflict. -Goethe
7. Face adversity bravely. -Horace
8. Never give in to a disaster, but face it bravely. Virgil