"It is science fiction’s mission to broaden and deepen people’s minds. If someone on the way home from work at night pauses to look thoughtfully up at the stars for a while because of a sci-fi story they’ve read, then that work is a great success. Unfortunately, our current sci-fi is also benumbed to a considerable extent, and I see two possible reasons. The first is conceptual. There’s an idea that sci-fi, like mainstream literature, is about relationships between people. This idea reduces the universe to nothing but a prop, a set piece, a supporting role. It cannot be denied that this idea has given rise to many excellent works, but sci-fi is at its strongest and most charming when it depicts the relationship between people and the universe. In sci-fi, the universe itself should be a protagonist, as much as any of its characters."
January 1, 1970
https://en.wikiquote.org/wiki/Liu_Cixin