Hardship can temper people's will - Thomas Brown

Steel is tempered in fierce 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

There will be no great cause without great difficulties. Voltaire

Those who accomplished great things in ancient times not only had extraordinary talents, but also had perseverance.

Su Shi