"A visible darkness grows up mountain paths; I lodge by the river gate high in a study, Frail cloud on a cliff edge passing the night. The lonely moon topples amid the waves; Steady, one after another, a line of cranes in flight. Howling over the kill, wild dogs and wolves. No sleep for me. I worry over battles— I have no strength to right the universe."
January 1, 1970
https://en.wikiquote.org/wiki/Du_Fu