Traditionally, Chinese literary criticism has placed great emphasis on knowledge of the life of the author when interpreting a work, a practice which Watson attributes to "the close links that traditional Chinese thought posits between art and morality". Since many of Du Fu's poems prominently feature morality and history, this practice is particularly important. Another reason, identified by the Chinese historian William Hung, is that Chinese poems are typically extremely concise, omitting circumstantial factors that might be relevant, but which could be reconstructed by an informed contemporary. For modern Western readers, "The less accurately we know the time, the place and the circumstances in the background, the more liable we are to imagine it incorrectly, and the result will be that we either misunderstand the poem or fail to understand it altogether". Owen suggests a third factor particular to Du Fu, arguing that the variety of the poet's work required consideration of his whole life, rather than the "reductive" categorisations used for more limited poets.

Early years

Most of what is known of Du Fu’s life comes from his poems. His paternal grandfather was Du Shenyan, a noted politician and poet during the reign of Empress Wu. Du Fu was born in 712; the birthplace is unknown, except that it was near Luoyang, Henan province (Gong county is a favourite candidate). In later life, he considered himself to belong to the capital city of Chang'an, ancestral hometown of the Du family.

Du Fu's mother died shortly after he was born, and he was partially raised by his aunt. He had an elder brother, who died young. He also had three half brothers and one half sister, to whom he frequently refers in his poems, although he never mentions his stepmother.

As the son of a minor scholar-official, his youth was spent on the standard education of a future civil servant: study and memorisation of the Confucian classics of philosophy, history and poetry. He later claimed to have produced creditable poems by his early teens, but these have been lost.In the early 730s, he travelled in the Jiangsu/Zhejiang area; his earliest surviving poem, describing a poetry contest, is thought to date from the end of this period, around 735.In that year, he took the civil service exam, likely in Chang'an. He failed, to his surprise and that of centuries of later critics. Hung concludes that he probably failed because his prose style at the time was too dense and obscure, while Chou suggests his failure to cultivate connections in the capital may have been to blame. After this failure, he went back to traveling, this time around Shandong and Hebei.

His father died around 740. Du Fu would have been allowed to enter the civil service because of his father's rank, but he is thought to have given up the privilege in favour of one of his half brothers. He spent the next four years living in the Luoyang area, fulfilling his duties in domestic affairs.

In the autumn of 744, he met Li Bai (Li Po) for the first time, and the two poets formed a friendship. David Young describes this as "the most significant formative element in Du Fu's artistic development" because it gave him a living example of the reclusive poet-scholar life to which he was attracted after his failure in the civil service exam. The relationship was somewhat one-sided, however. Du Fu was by some years the younger, while Li Bai was already a poetic star. We have twelve poems to or about Li Bai from the younger poet, but only one in the other direction. They met again only once, in 745.

In 746, he moved to the capital in an attempt to resurrect his official career. He took the civil service exam a second time during the following year, but all the candidates were failed by the prime minister (apparently in order to prevent the emergence of possible rivals). He never again attempted the examinations, instead petitioning the emperor directly in 751, 754 and probably again in 755. He married around 752, and by 757 the couple had had five children...three sons and two daughters...but one of the sons died in infancy in 755. From 754 he began to have lung problems (probably asthma), the first of a series of ailments which dogged him for the rest of his life. It was in that year that Du Fu was forced to move his family due to the turmoil of a famine brought about by massive floods in the region.

In 755, he received an appointment as Registrar of the Right Commandant's office of the Crown Prince's Palace. Although this was a minor post, in normal times it would have been at least the start of an official career. Even before he had begun work, however, the position was swept away by events.

War

The An Lushan Rebellion began in December 755, and was not completely suppressed for almost eight years. It caused enormous disruption to Chinese society: the census of 754 recorded 52.9 million people, but ten years later, the census counted just 16.9 million, the remainder having been killed or displaced.During this time, Du Fu led a largely itinerant life unsettled by wars, associated famines and imperial displeasure. This period of unhappiness was the making of Du Fu as a poet: Eva Shan Chou has written that, "What he saw around him—the lives of his family, neighbors, and strangers– what he heard, and what he hoped for or feared from the progress of various campaigns—these became the enduring themes of his poetry". Even when he learned of the death of his youngest child, he turned to the suffering of others in his poetry instead of dwelling upon his own misfortunes. Du Fu wrote:

"Brooding on what I have lived through, if even I know such suffering, the common man must surely be rattled by the winds."

In 756, Emperor Xuanzong was forced to flee the capital and abdicate. Du Fu, who had been away from the city, took his family to a place of safety and attempted to join the court of the new emperor (Suzong), but he was captured by the rebels and taken to Chang’an. In the autumn, his youngest son, Du Zongwu (Baby Bear), was born. Around this time Du Fu is thought to have contracted malaria.

He escaped from Chang'an the following year, and was appointed Reminder when he rejoined the court in May 757. This post gave access to the emperor but was largely ceremonial. Du Fu's conscientiousness compelled him to try to make use of it: he caused trouble for himself by protesting the removal of his friend and patron Fang Guan on a petty charge. He was arrested but was pardoned in June. He was granted leave to visit his family in September, but he soon rejoined the court and on December 8, 757, he returned to Chang’an with the emperor following its recapture by government forces. However, his advice continued to be unappreciated, and in the summer of 758 he was demoted to a post as Commissioner of Education in Huazhou. The position was not to his taste: in one poem, he wrote:

"I am about to scream madly in the office/Especially when they bring more papers to pile higher on my desk."

He moved on in the summer of 759; this has traditionally been ascribed to famine, but Hung believes that frustration is a more likely reason. He next spent around six weeks in Qinzhou (now Tianshui, Gansu province), where he wrote more than sixty poems.

Chengdu

In 760, he arrived in Chengdu (Sichuan province), where he based himself for most of the next five years. By the autumn of that year he was in financial trouble, and sent poems begging help to various acquaintances. He was relieved by Yan Wu, a friend and former colleague who was appointed governor general at Chengdu. Despite his financial problems, this was one of the happiest and most peaceful periods of his life, and many of his poems from this period are peaceful depictions of his life in his famous "thatched hut".In 762, he left the city to escape a rebellion, but he returned in summer 764 and was appointed military advisor to Yan, who was involved in campaigns against the Tibetans.

Last years

Luoyang, the region of his birthplace, was recovered by government forces in the winter of 762, and in the spring of 765 Du Fu and his family sailed down the Yangtze, apparently with the intention of making their way there. They traveled slowly, held up by his ill-health (by this time he was suffering from poor eyesight, deafness and general old age in addition to his previous ailments). They stayed in Kuizhou (now Baidicheng, Chongqing) at the entrance to the Three Gorges for almost two years from late spring 766. This period was Du Fu's last great poetic flowering, and here he wrote 400 poems in his dense, late style.In autumn 766, Bo Maolin became governor of the region: he supported Du Fu financially and employed him as his unofficial secretary.

In March 768, he began his journey again and got as far as Hunan province, where he died in Tanzhou (now Changsha) in November or December 770, in his 58th year. He was survived by his wife and two sons, who remained in the area for some years at least. His last known descendant is a grandson who requested a grave inscription for the poet from Yuan Zhen in 813.

Hung summarises his life by concluding that, "He appeared to be a filial son, an affectionate father, a generous brother, a faithful husband, a loyal friend, a dutiful official, and a patriotic subject."

Criticism of Du Fu's works has focused on his strong sense of history, his moral engagement, and his technical excellence.

History

Since the Song dynasty, critics have called Du Fu the "poet historian" (?? sh? sh?). The most directly historical of his poems are those commenting on military tactics or the successes and failures of the government, or the poems of advice which he wrote to the emperor. Indirectly, he wrote about the effect of the times in which he lived on himself, and on the ordinary people of China. As Watson notes, this is information "of a kind seldom found in the officially compiled histories of the era".

Du Fu's political comments are based on emotion rather than calculation: his prescriptions have been paraphrased as, "Let us all be less selfish, let us all do what we are supposed to do". Since his views were impossible to disagree with, his forcefully expressed truisms enabled his installation as the central figure of Chinese poetic history.

Moral engagement

A second favourite epithet of Chinese critics is that of "poet sage" (?? sh? shèng), a counterpart to the philosophical sage, Confucius. One of the earliest surviving works, The Song of the Wagons (from around 750), gives voice to the sufferings of a conscript soldier in the imperial army, even before the beginning of the rebellion; this poem brings out the tension between the need of acceptance and fulfilment of one's duties, and a clear-sighted consciousness of the suffering which this can involve. These themes are continuously articulated in the poems on the lives of both soldiers and civilians which Du Fu produced throughout his life.

Although Du Fu's frequent references to his own difficulties can give the impression of an all-consuming solipsism, Hawkes argues that his "famous compassion in fact includes himself, viewed quite objectively and almost as an afterthought". He therefore "lends grandeur" to the wider picture by comparing it to "his own slightly comical triviality".

Du Fu's compassion, for himself and for others, was part of his general broadening of the scope of poetry: he devoted many works to topics which had previously been considered unsuitable for poetic treatment. Zhang Jie wrote that for Du Fu, "everything in this world is poetry", and he wrote extensively on subjects such as domestic life, calligraphy, paintings, animals, and other poems.

Technical excellence

Du Fu's work is notable above all for its range. Chinese critics traditionally used the term ??? (jídàchéng- "complete symphony"), a reference to Mencius' description of Confucius. Yuan Zhen was the first to note the breadth of Du Fu's achievement, writing in 813 that his predecessor, "united in his work traits which previous men had displayed only singly". He mastered all the forms of Chinese poetry: Chou says that in every form he "either made outstanding advances or contributed outstanding examples". Furthermore, his poems use a wide range of registers, from the direct and colloquial to the allusive and self-consciously literary. This variety is manifested even within individual works: Owen identifies the, "rapid stylistic and thematic shifts" in poems which enable the poet to represent different facets of a sitation, while Chou uses the term "juxtaposition" as the major analytical tool in her work. Du Fu is noted for having written more on poetics, calligraphy, and painting than any other writer of his time. He wrote eighteen poems on painting alone, more than any other Tang poet. Du Fu's seemingly negative commentary on the prized horse paintings of Han Gan ignited a controversy that has persisted to the present day.

The tenor of his work changed as he developed his style and adapted to his surroundings ("chameleon-like" according to Watson): his earliest works are in a relatively derivative, courtly style, but he came into his own in the years of the rebellion. Owen comments on the "grim simplicity" of the Qinzhou poems, which mirrors the desert landscape; the works from his Chengdu period are "light, often finely observed"; while the poems from the late Kuizhou period have a "density and power of vision".

Although he wrote in all poetic forms, Du Fu is best known for his l?shi, a type of poem with strict constraints on the form and content of the work:

About two thirds of Du Fu's 1500 extant works are in this form, and he is generally considered to be its leading exponent. His best l?shi use the parallelisms required by the form to add expressive content rather than as mere technical restrictions. Hawkes comments that, "it is amazing that Tu Fu is able to use so immensely stylized a form in so natural a manner".

In his lifetime and immediately following his death, Du Fu was not greatly appreciated. In part this can be attributed to his stylistic and formal innovations, some of which are still "considered extremely daring and bizarre by Chinese critics". There are few contemporary references to him...only eleven poems from six writers...and these describe him in terms of affection, but not as a paragon of poetic or moral ideals. Du Fu is also poorly represented in contemporary anthologies of poetry.

However, as Hung notes, he "is the only Chinese poet whose influence grew with time", and his works began to increase in popularity in the ninth century. Early positive comments came from Bai Juyi, who praised the moral sentiments of some of Du Fu's works (although he found these in only a small fraction of the poems), and from Han Yu, who wrote a piece defending Du Fu and Li Bai on aesthetic grounds from attacks made against them. Both these writers showed the influence of Du Fu in their own poetic work. By the beginning of the 10th century, Wei Zhuang constructed the first replica of his thatched cottage in Sichuan.

It was in the 11th century, during the Northern Song era that Du Fu's reputation reached its peak. In this period a comprehensive re-evaluation of earlier poets took place, in which Wang Wei, Li Bai and Du Fu came to be regarded as representing respectively the Buddhist, Daoist and Confucian strands of Chinese culture. At the same time, the development of Neo-Confucianism ensured that Du Fu, as its poetic exemplar, occupied the paramount position. Su Shi famously expressed this reasoning when he wrote that Du Fu was "preeminent... because... through all his vicissitudes, he never for the space of a meal forgot his sovereign". His influence was helped by his ability to reconcile apparent opposites: political conservatives were attracted by his loyalty to the established order, while political radicals embraced his concern for the poor. Literary conservatives could look to his technical mastery, while literary radicals were inspired by his innovations. Since the establishment of the People's Republic of China, Du Fu's loyalty to the state and concern for the poor have been interpreted as embryonic nationalism and socialism, and he has been praised for his use of simple, "people's language".

Du Fu's popularity grew to such an extent that it is as hard to measure his influence as that of Shakespeare in England: it was hard for any Chinese poet not to be influenced by him. While there was never another Du Fu, individual poets followed in the traditions of specific aspects of his work: Bai Juyi's concern for the poor, Lu You's patriotism, and Mei Yaochen's reflections on the quotidian are a few examples. More broadly, Du Fu's work in transforming the l?shi from mere word play into "a vehicle for serious poetic utterance" set the stage for every subsequent writer in the genre.

Du Fu has also been influential beyond China, although in common with the other High Tang poets, his reception into the Japanese literary culture was relatively late. It was not until the 17th century that he was accorded the same respect in Japan as in China, but he then had a particular influence on Matsuo Bash?. In the 20th century, he was the favourite poet of Kenneth Rexroth, who has described him as "the greatest non-epic, non-dramatic poet who has survived in any language", and commented that, "he has made me a better man, as a moral agent and as a perceiving organism".

A variety of styles have been used in efforts to translate Du Fu’s work into English. As Burton Watson remarks in The Selected Poems of Du Fu, “There are many different ways to approach the problems involved in translating Du Fu, which is why we need as many different translations as possible” (p. xxii). The translators have had to contend with bringing out the formal constraints of the original without sounding laboured to a Western ear (particularly when translating regulated verse, or l?shi), and accommodating the complex allusions contained particularly in the later works (Hawkes writes that "his poems do not as a rule come through very well in translation"...p. ix). One extreme on each issue is represented by Kenneth Rexroth’s One Hundred Poems From the Chinese. His are free translations, which seek to conceal the parallelisms through enjambement and expansion and contraction of the content; his responses to the allusions are firstly to omit most of these poems from his selection, and secondly to “translate out” the references in those works which he does select.

Other translators have placed much greater weight on trying to convey a sense of the poetic forms used by Du Fu. Vikram Seth in Three Chinese Poets uses English-style rhyme schemes, whereas Keith Holyoak in Facing the Moon approximates the Chinese rhyme scheme; both use end-stopped lines and preserve some degree of parallelism. In The Selected Poems of Du Fu, Burton Watson follows the parallelisms quite strictly, persuading the western reader to adapt to the poems rather than vice versa. Similarly, he deals with the allusion of the later works by combining literal translation with extensive annotation.