It roughly means to show the strength of the spirit, and you can be more aggressive without admitting defeat. Specifically, it is understood that a person's material or physical possession can be destroyed, but his spirit and will cannot be defeated. Life will inevitably encounter all kinds of difficulties, even failures, no matter what, people have to face, the difference is your attitude towards it. In fact, difficulties are not terrible, as long as you have the courage and confidence to challenge it, then, even if it seems to fail on the surface, your heart is still full of pride in overcoming yourself. Believe in an iron law: you don't have to have hope to persevere. Never say die, it is Hemingway's classic masterpiece that has been passed down to future generations.