The second part, further explains Shi Tiesheng when faces human this difficult position, stimulates him to resist the nihility the courage, also caused him to see the life great and the vigor.

• 第二部分，进一步阐释史铁生在面对人本困境时，激发了他抗争虚无的勇气，也使他看到了生命的伟大与活力。