For writers in Western cultures, fall is a difficult season to describe.
On the one hand, it is the end of the summer, and therefore a little sad. When you get up in the morning, there's mist(薄雾) and it's cooler. You know that winter is around the corner. American writer Ernest Hemingway wrote in his book A Moveable Feast: "You expected to be sad in the fall. Part of you died each year when the leaves fell from the tree. . .
On the other hand, fall has its good side. There are so many changes in nature at this time of year:The red and brown colors that the leaves change to, and the way they fall from the trees. French writer Albert Camus even thought fall was a second spring: "Autumn is a second spring when every leaf is a flower. "
Another fall theme is wisdom. The coming of the season is just like a person becoming mature(成熟的). At this time it's thought that people have learned a thing or two about life.
Of course, there are many other themes and subjects in the literature fo fall. For example, it's the beginning of a new term of the school year. So fall can be a writing topic for children and young people. But fall writing is usually about the changes in nature. And writers often use it as a symbol for changes in human life.