What are the ancient poems about "strong will"?

Lyrics of Lime —— Yu Qian

Lyrics of Lime are hammered out of the mountains, and the fire is burning carelessly. I'm not afraid of broken bones and muddy bodies. I want to stay in the world.

"Bamboo Stone"-Zheng Xie

insists that the green hills are not relaxed, and the roots are originally in the broken rocks. After thousands of torture and blows, it is still strong, whether it is the southeast wind, or the winter of the northwest wind, it can withstand, and will still be tough and straight.

Crossing the Zero-Ding Ocean —— Wen Tianxiang

After a hard encounter, there are few stars around him. The mountains and rivers are broken and the wind is floating, and the life experience is ups and downs. Fear beachhead says fear, and there is a sigh in the ocean. Since ancient times, no one has died in life, leaving a heart to shine on history.

An idiom to describe firmness:

Unswervingly: stable, strong and unwavering.

steel bars and iron bones: the bones and muscles are cast like steel. Describe a strong body or a strong will.

Perseverance: It is a metaphor for not giving in in the face of pressure and being very tenacious.

standing proudly: standing proudly means being strong and unyielding. To stand upright means to stand tall like a mountain peak. Describe strong and unshakable