Difficult circumstances serve as a textbook of life for people.

孩子是成人之父。

最终，我们都只是故事。

The struggles I've been through, the pain I've endured, it all comes out in my music.

自然万物发展变化的规律是：发展到尽头，就会走向反面；发展到极盛之后，就会趋于衰落。