白居易在唐宪宗元和十年(公元八一五年)给老朋友元稹写了一封长信,谈到了自己的诗歌遭到上层统治者忌恨的情况。满腔郁结,自然不吐不快,他于是一提笔就写下了足足三、四千字。这些字数,在当时真可说是洋洋洒洒,相当的长了;这自然比不上今天我们有些人以长为务,喜长成癖,一摇笔杆子就得上万。白居易写到最后,意犹未尽,在信末他又写道: Bai Juyi wrote a long letter to Tang Yuanzong and Tang Yuanzong in 1815 (AD 815) about his own poetry being hated by the upper rulers. Full of depressed, naturally not spit fast, he then wrote a pen to write a full three or four thousand words. These words, at that time, were indeed very eloquent and quite long. This is certainly not the case today, as some of us take long-term dedication and joy as an addiction, we have to have tens of thousands of pencils. At the end of his life, Bai Juyi said that he still wrote it and wrote at the end of the letter: