Du Fu (Du Fu 1949, also known as Du Huanhua) said: "When I write poetry in my later years, I will gradually refine the rhythm of poetry" (I am getting more and more refined in my later years), and he also said that "the words used in writing poetry must be clever, so that people feel that their eyes are sharp" (it is not surprising to die endlessly). And Jia Dao said, "After years of thinking hard, I finally got two good poems, and when I recited them, I was moved to tears" (two sentences took three years, and one was a tear). Ouyang Xiu said: "Although this poem was written while I was sitting, in fact, the inspiration seems to have suddenly come to my mind from the sky" (a sentence is from sitting, and my heart is foreign). Meng Jiao also said that "there is no good sentence in writing poetry at night, and it will stop until dawn, and the sound of bitter songs will make ghosts and gods feel headache" (the night is endless, and ghosts and gods are sad). Lu Yanrang said that finding a good poem means "searching for a good sentence from a height makes God feel impatient, searching for good words at will in the sea and scraping the sea clean." It's boring to find that there are unexpected events in the sky, and it's dry to search the sea crazily. Du Xunhe even said, "There is not a day when I am alive that I am not thinking hard about how to write a good poem. It seems that only when I die will I stop worrying about writing poems. "
There are many poems like this, from which we can see the difficulty of poets writing poems. But why do people like this write a few words casually with a pen today and call it writing poetry?