A raging torrent roared out of the valley alone, and the pine tree collapsed in front of him, thus opening a path for itself; I will also open a path for myself like this mountain torrent.
Engels once pointed out that "labor is the first thing, and then language and labor together become the two main driving forces." Under their influence, the animal's brain gradually became the human brain. " His viewpoint is used to explain the origin of poetry, and it has also become one of the important arguments for the origin of poetry.