Don’t let go of the green hills, and keep your roots in the broken rocks. ——Zheng Banqiao

Human life is like a rushing flood. It is difficult to stir up beautiful waves without encountering islands and reefs.

A great career is rooted in perseverance and continuous work, which should be carried out with full energy and not avoid hardships. ——Russell

36. The greater the difficulty, the greater the glory. ——Cicero

37. If things are not tempered, they will never become useful; ——Li Zhi

38. The spirit has been tempered hundreds of times, and it is sharp and unyielding. ——Liu Guo

39. God sets many obstacles on the road just to strengthen your will.

——Tagore